The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-154-2590, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-154-2590 |
| Primary Part Number | 3687999 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.136 INCHES NOMINAL IN |
| Fastener Length | 0.440 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.190 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 3687999 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3687999 | Linahan Manufacturing Co of California (USA) |
| 3687999 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3687999 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3687999 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 3687999 | C/1 Advisory reference — outside the item-of-supply concept Platt Construction Inc |
| 3687999 | 5/9 Secondary reference U.S. Government activity |
| 3687999 | 3/2 Design control — primary reference U.S. Government activity |
| 10115468 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 3687999 | 5/9 Secondary reference First American Sales Co Inc |
NSN 5305-01-154-2590 is a Screw,cap,socket Head, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-154-2590 has 5 manufacturer part numbers on file: 3687999 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 3687999 (Linahan Manufacturing Co of California), 3687999 (Fastener Innovation Technology, Inc. Dba F I T), 3687999 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 3687999 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 3687999: Head Height: 0.136 INCHES NOMINAL IN; Fastener Length: 0.440 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.190 INCHES NOMINAL IN. 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.