The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-071-2078, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5305-00-071-2078 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | CANCELLED |
| Surface Finish | 63.0 MICROINCHES THREADS |
| Head Height | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN |
| Fastener Length | 3.656 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY2CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.250 INCHES MINIMUM AND 1.442 INCHES MAXIMUM IN |
| Material Document and Classification | SAEJ429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR ASTMA354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 5305000712078 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 5305PL0780540 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 186659 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS90728-122 | 5/9 Secondary reference U.S. Government activity |
| D30114 FIND NO 63 | C/1 Advisory reference — outside the item-of-supply concept Control Flow, Inc. Dba Control Flow Inc |
| B1821BH050C375N | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-071-2078 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: cancelled.
3 possible matches (shared part number, not a government interchangeability claim): 5305-00-297-0678, 5325-01-678-9918, 5305-01-695-3601. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-00-071-2078: Surface Finish: 63.0 MICROINCHES THREADS; Head Height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN; Fastener Length: 3.656 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY2CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 16 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 5305-00-071-2078 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.