NSN 5305-01-437-5503

Socket Head Cap Screw

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

NIIN:

014375503

Pricing & Availability Check

Submit this form for stock availability and pricing.

Inventory

This product may be available in the following quantities and conditions.

NE: 1194

Please note that inventory for this NSN was updated 08/19/2025 and may have changed since then. Request a quote for up to date pricing and availability.

Product Definition Definition of approved item name (AIN): "SCREW,CAP,SOCKET HEAD"

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

5305-01-437-5503 Spec. NSN part characteristics

MRC

Name

Detail

MRC:

AAJF

Thread Direction

Right-hand

MRC:

AASA

Thread Length

Between 22.60 millimeters and 25.40 millimeters

MRC:

AASB

Fastener Length

Between 24.60 millimeters and 25.40 millimeters

MRC:

AASK

Head Style

Flat chamfer

MRC:

AASL

Head Diameter

Between 9.74 millimeters and 10.00 millimeters

MRC:

AASU

Head Height

Between 5.85 millimeters and 6.00 millimeters

MRC:

ABQZ

Internal Drive Style

Hexagon

MRC:

AHYM

Thread Diameter

6.0 millimeters

MRC:

ASDB

Width Across Flats

Between 5.020 millimeters and 5.084 millimeters

MRC:

CQBC

Min. Tensile Strength (psi)

1220 megapascals

MRC:

CQFM

Hardness Rating

38.0 rockwell c and 44.0 rockwell c

MRC:

CQHQ

Minimum Yield Strength

1100 megapascals

MRC:

CQQR

Thread Pitch In Millimeters

1.0

MRC:

CQWR

External Thread Tolerance Class

4g6g

MRC:

MATT

Material

Steel property class 12.9

MRC:

SFTT

Surface Treatment

Zinc and chromate

MRC:

STDC

Surface Treatment Specification

Astm b633, type 2, class 3 assn standard single treatment response

MRC:

THSD

Thread Series Designator

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:

B1831BH060025N

Cage Code:

80204

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

B18.3.1M-M6X1.0X25SHCS,ZNPLATED

Cage Code:

80204

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

B18.3.1M-M6X1.0X25SHCS,ZNPLATED

Cage Code:

80204

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

B1831BH060025N

Cage Code:

80204

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

B18.3.1M-M6X1.0X25SHCS,ZNPLATED

Cage Code:

80204

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

B1831BH060025N

Cage Code:

80204

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

B18.3.1M-M6X1.0X25SHCS,ZNPLATED

Cage Code:

80204

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:

16282

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Special material and handling

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.

Import and Export

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

National motor freight and handling

NMFC

Class

UFC

LTL

LCL

WCC

TCC

SHC

ADC

ACC

NMFC:

096640

NMF Description:

Iron Or Steel Screws

UFC:

50600

LTL:

70.0

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)