The Screw,shoulder, cataloged under National Stock Number 5305-01-386-5277, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 21 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-386-5277 |
| Primary Part Number | 02270-2 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | ACTIVE |
| Width Across Flats | 0.312 INCHES NOMINAL IN |
| Head Height | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Fastener Length | 2.485 INCHES NOMINAL IN |
| Shoulder Length | 1.652 INCHES MINIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Shoulder Diameter | 0.621 INCHES MINIMUM AND 0.623 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.605 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Criticality Code Justification | FEAT |
| Material Document and Classification | ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL UNS K03104 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.853 INCHES MINIMUM AND 0.875 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 02270-2 PRIMARY | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
NSN 5305-01-386-5277 is a Screw,shoulder, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-386-5277 has 1 manufacturer part number on file: 02270-2 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-503-9403. Verify interchangeability with system specifications before substitution.
Key specifications for 02270-2: Width Across Flats: 0.312 INCHES NOMINAL IN; Head Height: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Fastener Length: 2.485 INCHES NOMINAL IN; Shoulder Length: 1.652 INCHES MINIMUM FIRST SHOULDER IN. 21 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.