The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-362-7079, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Ambac International Corporation Div Ambac International. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-362-7079 |
| Primary Part Number | SC400331 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ambac International Corporation Div Ambac International |
| Status | ACTIVE |
| Fastener Length | 0.656 INCHES MINIMUM AND 0.658 INCHES MAXIMUM IN |
| Hole Configuration Style | HEXAGON CORNERS |
| Material Document and Classification | SAE J429 GR 8 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | OXIDE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| 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 |
|---|---|
| SC400331 | Ambac International Corporation Div Ambac International (USA) |
| Reference | Meaning |
|---|---|
| 5305003627079 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| SC1140B | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
| SC1140B | 3/9 Design control — primary reference U.S. Government activity |
NSN 5305-00-362-7079 is a Screw,cap,hexagon Head, manufactured by Ambac International Corporation Div Ambac International, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-362-7079 has 1 manufacturer part number on file: SC400331 (Ambac International Corporation Div Ambac International).
Key specifications for SC400331: Fastener Length: 0.656 INCHES MINIMUM AND 0.658 INCHES MAXIMUM IN; Hole Configuration Style: HEXAGON CORNERS; Material Document and Classification: SAE J429 GR 8 FED STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.250 INCHES IN. 12 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.