The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-333-2121, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-333-2121 |
| Primary Part Number | 7909133-00 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Width Across Flats | 0.0625 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN |
| Head Height | 0.051 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN |
| Fastener Length | 0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-13924 CL4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.170 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | BUTTON |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | OXIDE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 301 OR STEEL COMP 303 OR STEEL COMP 302B OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.201 INCHES MINIMUM AND 0.213 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 |
|---|---|
| 7909133-00 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 7909133-00 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-01-333-2121 is a Screw,cap,socket Head, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-333-2121 has 1 manufacturer part number on file: 7909133-00 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 7909133-00: Width Across Flats: 0.0625 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN; Head Height: 0.051 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN; Fastener Length: 0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-13924 CL4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 15 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.