The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-657-8141, 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. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Heartland Precision Fasteners Inc (CAGE 0ZC92); 3-V Fastener Co., Inc. (CAGE 1ER65); Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-657-8141 |
| Primary Part Number | BACS12HL6B40 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| 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 |
|---|---|
| BACS12HL6B40 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACS12HL6B40 | Heartland Precision Fasteners Inc (USA) |
| BACS12HL6B40 | 3-V Fastener Co., Inc. (USA) |
| BACS12HL6B40 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BACS12HL6B40 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-657-8141 is a Screw,cap,socket Head, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-657-8141 has 4 manufacturer part numbers on file: BACS12HL6B40 (Sps Technologies, Llc Dba PB Fasteners), BACS12HL6B40 (Heartland Precision Fasteners Inc), BACS12HL6B40 (3-V Fastener Co., Inc.), BACS12HL6B40 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
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.