The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-693-4577, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-693-4577 |
| Primary Part Number | 81306958 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Fastener Length | 1.75 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.50 INCHES IN |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 81306958 PRIMARY | Fairbanks Morse, Llc (USA) |
| S9312-AH-MMA-020-FIG-7-7-13 | Naval Sea Systems Command (USA) |
NSN 5305-01-693-4577 is a Screw,cap,socket Head, manufactured by Fairbanks Morse, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-693-4577 has 2 manufacturer part numbers on file: 81306958 (Fairbanks Morse, Llc), S9312-AH-MMA-020-FIG-7-7-13 (Naval Sea Systems Command).
Key specifications for 81306958: Fastener Length: 1.75 INCHES NOMINAL IN; Nominal Thread Diameter: 0.50 INCHES IN; Part Name Assigned by Controlling Agency: CAPSCREW,1/2-20X1-3/4; End Item Identification: GENERATOR SET EMERGENCY DIESEL SUBMARINE. 4 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.