NSN 5305-00-004-5114

Close Tolerance Screw

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

25 EA

NIIN:

000045114

Pricing & Availability

Submit this form for current pricing and availability quote on part number and/or cross reference parts.

Definition Definition of approved item name (AIN): "SCREW,CLOSE TOLERANCE"

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

5305-00-004-5114 Spec. NSN part characteristics

MRC

Name

Detail

MRC:

AAJD

Thread Class

MRC:

AAJF

Thread Direction

Right-hand

MRC:

AASA

Thread Length

Between 0.290 inches and 0.357 inches

MRC:

AASB

Fastener Length

Between 0.550 inches and 0.597 inches

MRC:

AASK

Head Style

Flat countersunk

MRC:

AASL

Head Diameter

0.394 inches

MRC:

AAUR

Grip Diameter

Between 0.2485 inches and 0.2495 inches

MRC:

ABQZ

Internal Drive Style

Offset cruciform (torque set)

MRC:

AHYM

Thread Diameter

0.250 inches

MRC:

ANEE

Grip Length

Between 0.240 inches and 0.260 inches

MRC:

CMLP

Thready Qty Per Inch (tpi)

MRC:

CQBC

Min. Tensile Strength (psi)

180000 pounds per square inch

MRC:

CRSQ

Countersink Angle

Between 99.5 degrees and 100.5 degrees

MRC:

CSYM

Surface Finish

32.0 microinches grip

MRC:

MATT

Material

Steel comp e4340 or steel comp 4340 or steel comp 6150

MRC:

SFTT

Surface Treatment

Cadmium and chromate

MRC:

STDC

Surface Treatment Specification

Qq-p-416, type 2, cl 3 federal specification single treatment response

MRC:

THSD

Thread Series Designator

Unf

Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM

Part Number

Cage

RNCC

RNVC

DAC

RNAAC

Status

MSDS

SADC

Part Number:

51B581-4-4

Cage Code:

0JRC1

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

51B581-4-4

Cage Code:

76823

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Indicates a design/source control reference item

Inidicates part number has been superseded

Identification Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29294

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Part End Users MOE: Major organizational entities

Name

MOE Code

MOE Rule

PICA

DSOR

User:

Department of the Air Force

MOE:

Rule:

FXGI

PICA:

DSOR:

User:

Brazil

MOE:

Rule:

YA01

PICA:

DSOR:

User:

Singapore

MOE:

Rule:

YJ01

PICA:

DSOR:

User:

Malaysia

MOE:

Rule:

YW01

PICA:

DSOR:

User:

Republic of Korea

MOE:

Rule:

ZH01

PICA:

DSOR:

User:

Turkey

MOE:

Rule:

ZW01

PICA:

DSOR:

Material & Special Handling Hazmat, Precious Metals, Criticality, Enviroment, and ESD

HMIC

PMIC

ESD

ENAC

ADPE

CRITL

HMIC:

PMIC:

ESD:

ADPE:

CRITL:

Hazmat (HMIC) N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Precious Metals (PMIC) U

Precious metal content is unknown

Criticality X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Identification Codes

HMIC: Hazardous Material Indicator Code. Identifies a hazardous item.

PMIC: Precious Metal Indicator Code. Identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.

ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.

ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.

CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.

Packaging & Dimensions MIL-STD codes: http://www.dla.mil/LandandMaritime/.../MILSTD2073Codes.aspx

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

Item Weight:

Item Dim:

Container

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

LVL C

Container:

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

LVL_C:

CUSH

MOP

CATEG.

PRES MAT

WRAP MAT

ICQ

THK

TOS

UCL

CUSH DUN:

MOP:

PKG:

27A0

PRES MAT:

WRAP MAT:

ICQ:

AAA

THK:

TOS:

UCL:

Packaging Codes Definitions:

LVL A Code (LVL_A) E

Packing shall be accomplished to meet the performance test requirements of astm-d4169, distribution cycle 18, assurance level 1.

LVL B Code (LVL_B) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with the appropriate shipping container specification.

Procedure Indicator Code (OPI) O

Options can be exercised as to specific method of preservation or dod approved packaging materials to be used. however, basic preservation method shall be retained, supplemental data shall be complied with, and unit package dimensions shall not be increased by more than one inch. equal or better protection shall be given the item and there shall be no increase in the package cost.

Special Markings Code (SPC_MKG) 00

No special marking.

Method of Preservation (MOP) 10

Physical protection.

Preservation Material (PRES_MAT) 00

No requirement.

Packaging Codes

OPI: Optional Procedure Indicator Code. A one position alpha code that indicates the allowable deviations from the prescribed requirements.

SPI No.: Special packaging instructions number.

LVL A/B/C: Indicates the type of shipping container required for level A, B, or C maximum packing protection.

SPC Mkg: A two position code that identifies the special markings applied to the container, which is part of the total pack to protect the contained item during preservation, packing, storage, transit and removal from the pack.

MOP: Method of Preservation. Preventive measures to protect from deterioration resulting from exposure to atmospheric conditions during storage and shipment.

CUSH: Resilient material or devices used to absorb and dissipate energy from shock and vibration to adequately protect the contents and packaging components from physical damage during handling, shipment, and storage.

PRES MAT: Preservation Material. Identifies the material used to prevent or inhibit corrosion or deterioration of an item.

THK: Thickness of cushioning. Minimum thickness of material used to cushion the item.

TOS: Type of Storage. Type of storage space and environment conditions to be maintained for an item during storage and shipment.

Import / Export Schedule B Classification

Schedule B

NAIC

End Use

SITC

USDA

HITECH

Schedule B:

7318152000

NAICS:

332722

End Use Class:

12110

SITC:

69421

USDA:

HITECH:

Schedule B Codes Definitions:

Schedule B 7318152000

Bolts and Bolts and Their Nuts Or Washers Exported In The Same Shipment

End Use Code 12110

Iron and Steel Products, Other

Standard Intl. Trade Class (SITC) 69421

Screws, Bolts, Nuts, Screw Hooks, Rivets, Washers and Similar Articles, Threaded, Of Iron Or Steel

Freight Universal and National freight and handling information

NMFC

Class

UFC

LTL

LCL

WCC

TCC

SHC

ADC

ACC

NMFC:

093486

NMF Description:

Noi (sub 3) Nuts Or Screws Bolts

UFC:

48950

LTL:

Rating variable

LCL:

WCC:

713

TCC:

SHC:

ADC:

ACC:

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 713

Metal hardware.

Air Commodity (ACC) B

Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater.

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)

Freight Codes

NAIC: North American Industry Classification. Classifies items and business activity for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy.

SITC: Standard International Trade Classification.

NMFC: National motor freight classification. A six position numeric code, which divides articles into groups or classes according to physical characteristics. the classification is based on truckloads vs. less than truckload.

UFC: Universal freight classification. a five position numeric code, which divides articles into groups or classes according to physical characteristics. the classification is based on carload vs. less than carload.

LTL: Less than a truckload rating.

LCL: Less than a carload rating.

WCC: Water commodity code. A three position code that indicates all shipments via water.

TCC: Type of Cargo Code. A one position code for all shipments via water to identify the type of cargo included within the shipment unit.

SHC: Special Handling Code. A one position code for all shipments via water to identify the exception handling required for cargo included within the shipment unit

ADC: Air Dimension Code. A one position alpha code that identifies dimensional characteristics of air shipments by relating the length, width, or height dimensions of the largest piece to the minimum size cargo door opening of an aircraft

ACC: Air Commodity Code. A one position code for all shipments via air to identify material for manifesting and customs requirements