55X21

Machine Screw

NSN 5305-00-011-0500

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

48 HD

NIIN:

000110500

Technical Specifications of NSN

Thread Class:

Thread Direction:

Right-hand

Thread Length:

0.500 inches

Fastener Length:

0.500 inches

Head Style:

Round

Head Diameter:

Between 0.334 inches and 0.359 inches

Head Height:

Between 0.123 inches and 0.137 inches

Internal Drive Style:

Slot

Thread Diameter:

0.190 inches

Thready Qty Per Inch (tpi):

Min. Tensile Strength (psi):

60000 pounds per square inch

Screw Material:

Steel

Screw Material Specification:

Qq-s-634 federal specification single material response or qq-s-637 federal specification single material response or 66 federal standard single material response

Thread Series Designator:

Unc

Nondefinitive Specification/std Data:

1 type and 1s style

NSN:

5305-00-011-0500

Item Name:

Screw,air Silencer

Cage Code:

58275

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RNCC:

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Cage Code:

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Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06657

FIIG:

A500D0

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

50.0

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 55x21 and/or cross reference parts.

Definition Definition of approved item name (AIN): "Air Silencer Screw"

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.