The Screw,machine, cataloged under National Stock Number 5305-00-271-6121, 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 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-271-6121 |
| Primary Part Number | 51269PC11 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Fastener Length | 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN |
| Screw Material Document and Classification | MIL-S-16124,CL 1 COMP A MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 0.217 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.125 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 71.0 DEGREES MINIMUM AND 73.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 48 |
| Thread Series Designator | UNS |
| Head Diameter | 0.198 INCHES MINIMUM AND 0.203 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 |
NSN 5305-00-271-6121 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 5305-00-271-6121 has 2 manufacturer part numbers on file: 51269PC11 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), SP3287 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 51269PC11: Fastener Length: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN; Screw Material Document and Classification: MIL-S-16124,CL 1 COMP A MIL SPEC SINGLE MATERIAL RESPONSE; Thread Length: 0.217 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.125 INCHES IN. 13 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.