The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-191-2080, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Woodward, Inc. Div Fuel Systems and Controls. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-191-2080 |
| Primary Part Number | 1037-646 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Woodward, Inc. Div Fuel Systems and Controls |
| Status | ACTIVE |
| Width Across Flats | 0.1406 INCHES MINIMUM AND 0.1426 INCHES MAXIMUM IN |
| Head Height | 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | S+151,FSCM 66503 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.625 INCHES NOMINAL IN |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 410 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 1037-646 PRIMARY | Woodward, Inc. Div Fuel Systems and Controls (USA) |
NSN 5305-01-191-2080 is a Screw,cap,socket Head, manufactured by Woodward, Inc. Div Fuel Systems and Controls, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-191-2080 has 1 manufacturer part number on file: 1037-646 (Woodward, Inc. Div Fuel Systems and Controls).
Key specifications for 1037-646: Width Across Flats: 0.1406 INCHES MINIMUM AND 0.1426 INCHES MAXIMUM IN; Head Height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN; Fastener Length: 0.625 INCHES NOMINAL IN; Surface Treatment Document and Classification: S+151,FSCM 66503 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 17 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.