The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-983-7456, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Imi Systems Ltd. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-983-7456 |
| Primary Part Number | 402512218 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Imi Systems Ltd |
| Status | CANCELLED |
| Width Across Flats | 0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN |
| Head Height | 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Fastener Length | 1.440 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.340 INCHES MINIMUM AND 1.400 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 402512218 | Imi Systems Ltd (ISR) |
| Reference | Meaning |
|---|---|
| 5305009837456 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 402512218 | 5/9 Secondary reference Israel Military Industries Ltd Dba Taas - Israel Industries Ltd - Formerly |
| MS16998-97 | 2/2 Government specification standardization U.S. Government activity |
| 509441-812 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 5305PL0839066 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| V2B11186-4MF | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-00-983-7456 is a Screw,cap,socket Head, manufactured by Imi Systems Ltd, classified under FSC 5305, Screws. Status: cancelled.
NSN 5305-00-983-7456 has 1 manufacturer part number on file: 402512218 (Imi Systems Ltd).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-421-2162, 5305-01-499-9591. Verify interchangeability with system specifications before substitution.
Key specifications for 402512218: Width Across Flats: 0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN; Head Height: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Fastener Length: 1.440 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 18 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.
NSN 5305-00-983-7456 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.