The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-269-3237, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-269-3237 |
| Primary Part Number | 12644192 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN |
| Fastener Length | 1.125 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.125 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 2 TYPE AND 10P STYLE AND 8 GRADE |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12644192 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| B1821BH038F113N PRIMARY | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| MS90727-61 | 5/9 Secondary reference U.S. Government activity |
| 5305002693237 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 40993AX | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Corp |
| 5-4-1303-97 | 3/2 Design control — primary reference U.S. Government activity |
| FF-S-85 | 4/1 Identification reference U.S. Government activity |
| B1821BH038F113N | 5/9 Secondary reference U.S. Government activity |
| 402350213 | 5/9 Secondary reference Israel Military Industries Ltd Dba Taas - Israel Industries Ltd - Formerly |
| 5-4-1303-97 | 5/9 Secondary reference Brunswick Corp Defense Div |
NSN 5305-00-269-3237 is a Screw,cap,hexagon Head, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-269-3237 has 2 manufacturer part numbers on file: 12644192 (U S Army Tank Automotive Command Amsta-Im-Mm), B1821BH038F113N (The American Society of Mechanical Engineers).
Key specifications for 12644192: Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN; Fastener Length: 1.125 INCHES NOMINAL IN; Surface Treatment Document and Classification: ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.125 INCHES MAXIMUM IN. 17 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.