The Screw,shoulder, cataloged under National Stock Number 5305-01-148-8208, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-148-8208 |
| Primary Part Number | 331478 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM IN |
| Head Height | 0.151 INCHES MINIMUM IN |
| Fastener Length | 0.804 INCHES MINIMUM AND 0.819 INCHES MAXIMUM IN |
| Shoulder Length | 0.184 INCHES MINIMUM AND 0.199 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | GM 4435-M GRADE 72 CODE A FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.440 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PHOSPHATE OVERALL |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNRC |
| Head Diameter | 0.800 INCHES MINIMUM AND 0.810 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 | X |
| Part Number | Manufacturer |
|---|---|
| 331478 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 331478 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 2230209 | 5/9 Secondary reference Bendix Corp the Brake and Steering Div |
NSN 5305-01-148-8208 is a Screw,shoulder, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-148-8208 has 1 manufacturer part number on file: 331478 (General Motors Llc Dba General Motors Llc).
Key specifications for 331478: Width Across Flats: 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM IN; Head Height: 0.151 INCHES MINIMUM IN; Fastener Length: 0.804 INCHES MINIMUM AND 0.819 INCHES MAXIMUM IN; Shoulder Length: 0.184 INCHES MINIMUM AND 0.199 INCHES MAXIMUM FIRST SHOULDER IN. 20 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.