642AS1631-3

Close Tolerance Screw

NSN 5305-01-110-9771

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

50 EA

NIIN:

011109771

Product Features

Furnished with one o-ring

Technical Specifications of NSN

Thread Class:

Thread Direction:

Right-hand

Thread Length:

Between 0.443 inches and 0.493 inches

Fastener Length:

Between 0.953 inches and 0.983 inches

Head Style:

Flat countersunk undercut

Head Diameter:

Between 0.502 inches and 0.507 inches

Head Height:

Between 0.071 inches and 0.073 inches

Grip Diameter:

Between 0.2485 inches and 0.2495 inches

Internal Drive Style:

High-torque

Thread Diameter:

0.250 inches

Grip Length:

Between 0.490 inches and 0.510 inches

Thready Qty Per Inch (tpi):

Countersink Angle:

Between 99.0 degrees and 101.0 degrees

Surface Finish:

32.0 microinches grip

Surface Finish:

32.0 microinches threads

Material:

Steel comp xm-13

Surface Treatment:

Aluminum and chromate

Surface Treatment Specification:

Mil-c-83488, type2, class 3 military specification single treatment response

Thread Series Designator:

Unjf

NSN:

5305-01-110-9771

Item Name:

Screw,machine,flat-head,close Tolerance

Cage Code:

D9182

Other Related Parts

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

HT4067-4-8A

Cage Code:

80539

RNCC:

RNVC:

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SADC:

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HT4067-4-8A

Cage Code:

73197

RNCC:

RNVC:

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3M925C4-8A

Cage Code:

76301

RNCC:

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HT4067-4-8A

Cage Code:

06725

RNCC:

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SADC:

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3M925C4-8A

Cage Code:

06710

RNCC:

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RNAAC:

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SADC:

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HT4067-4-8A

Cage Code:

06950

RNCC:

RNVC:

RNAAC:

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SADC:

Part Number:

3M925C4-8A

Cage Code:

0ZC92

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HT4067-4-8A

Cage Code:

17446

RNCC:

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SADC:

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3M925C4-8A

Cage Code:

1VSL7

RNCC:

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RNAAC:

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SADC:

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HT4067-4-8A

Cage Code:

27624

RNCC:

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SADC:

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3M925C4-8A

Cage Code:

58998

RNCC:

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RNAAC:

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MSDS:

SADC:

Part Number:

HT4067-4-8A

Cage Code:

56878

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

11881C4-8A

Cage Code:

59563

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

WC4067-4-8A

Cage Code:

60516

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

HT4067-4-8A

Cage Code:

K5673

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

HT4067-4-8A

Cage Code:

L4528

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

HT4067-4-8A

Cage Code:

0PTK6

RNCC:

RNVC:

RNAAC:

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MSDS:

SADC:

Part Number:

3M925C4-8A

Cage Code:

0PTK6

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

HT4067-4-8A

Cage Code:

97928

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

HT4067-4-8A

Cage Code:

92215

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

CHT4067-4-8A

Cage Code:

06950

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

WC4067-4-8A

Cage Code:

60515

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

CHT4067-4-8A

Cage Code:

92215

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

3M925C4-8A

Cage Code:

007R1

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29294

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Pricing & Availability

Submit this form for current pricing and availability quote on part number 642as1631-3 and/or cross reference parts.

Definition Definition of approved item name (AIN): "Close Tolerance Flat-head Machine Screw"

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.