The Screw,machine, cataloged under National Stock Number 5305-00-271-5261, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 14 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. 3 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 | 5305-00-271-5261 |
| Primary Part Number | 654363 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Head Height | 0.156 INCHES NOMINAL IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.406 INCHES NOMINAL IN |
| Screw Material Document and Classification | STM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.219 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.099 INCHES IN |
| Head Style | ROUND WITH WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.213 INCHES MINIMUM AND 0.216 INCHES MAXIMUM IN |
| Screw Material | STEEL COMP 4140H |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 56 |
| Thread Series Designator | UNF |
| Head Diameter | 0.281 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-00-271-5261 is a Screw,machine, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-271-5261 has 2 manufacturer part numbers on file: 231512 (Lockheed Martin Corporation Div Rms - Mitchel Field), 654363 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
3 possible matches (shared part number, not a government interchangeability claim): 7045-01-237-4466, 5331-01-306-8626, 5995-01-376-5402. Verify interchangeability with system specifications before substitution.
Key specifications for 654363: Head Height: 0.156 INCHES NOMINAL IN; Screw Surface Treatment: CADMIUM; Fastener Length: 0.406 INCHES NOMINAL IN; Screw Material Document and Classification: STM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE. 14 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.