The Screw,close Tolerance, cataloged under National Stock Number 5305-01-646-1906, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. The record lists 7 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725); Fastener Technology Corp (CAGE 58794); B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (CAGE 1EM77); Saturn Fasteners Inc (CAGE 0K6Z0); M.s. Aerospace Inc. Dba Ms Aerospace Inc (CAGE 0UCY9) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-646-1906 |
| Primary Part Number | JSFB23-4-5 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| 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 |
|---|---|
| JSFB23-4-5 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| JSFB23-4-5 | Fastener Technology Corp (USA) |
| JSFB23-4-5 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| JSFB23-4-5 PRIMARY | Saturn Fasteners Inc (USA) |
| JSFB23-4-5 PRIMARY | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| JSFB23-4-5 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| JSFB23-4-5 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| JSFB23-4-5 | 3/2 Design control — primary reference U.S. Government activity |
| JSFB23-4-5 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5305-01-646-1906 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-646-1906 has 7 manufacturer part numbers on file: JSFB23-4-5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), JSFB23-4-5 (Fastener Technology Corp), JSFB23-4-5 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), JSFB23-4-5 (Saturn Fasteners Inc), JSFB23-4-5 (M.s. Aerospace Inc. Dba Ms Aerospace Inc) and 2 more.
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.