The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-366-2853, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-366-2853 |
| Primary Part Number | 8055508 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Width Across Flats | 0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN |
| Head Height | 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Fastener Length | 4.750 INCHES NOMINAL IN |
| Thread Length | 1.688 INCHES MINIMUM IN |
| Hole Configuration Style | ROUND |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Hole Quantity | 2 |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| Hole Diameter | 0.062 INCHES NOMINAL IN |
| Head Diameter | 0.730 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 8055508 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 8055508 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| 187697 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-00-366-2853 is a Screw,cap,socket Head, manufactured by General Motors Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-366-2853 has 1 manufacturer part number on file: 8055508 (General Motors Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-281-9061, 5305-01-446-4827. Verify interchangeability with system specifications before substitution.
Key specifications for 8055508: Width Across Flats: 0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN; Head Height: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Fastener Length: 4.750 INCHES NOMINAL IN; Thread Length: 1.688 INCHES MINIMUM 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.