The Screw,close Tolerance, cataloged under National Stock Number 5305-01-054-6237, 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. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-054-6237 |
| Primary Part Number | AIC9535-6-21 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Fastener Length | 1.882 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.555 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN |
| Grip Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| C9535-6-21 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VT1696-6-21 | Howmet Global Fastening Systems Inc (USA) |
| AIC9535-6-21 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| PBF1198-6-21 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 121754-6-21 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 5305PL0759593 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| VT1696-6-21 | 3/2 Design control — primary reference U.S. Government activity |
| C9535-6-21 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 5305PL1655240 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| C9535-6-21 | 7/2 Vendor item drawing reference U.S. Government activity |
| C9535-6-21 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 121754-6-21 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-054-6237 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 5305-01-054-6237 has 5 manufacturer part numbers on file: C9535-6-21 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VT1696-6-21 (Howmet Global Fastening Systems Inc), AIC9535-6-21 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), PBF1198-6-21 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 121754-6-21 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for AIC9535-6-21: Fastener Length: 1.882 INCHES NOMINAL IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.555 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN; Material Document and Classification: AMS 6487 ASSN STD SINGLE MATERIAL 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.