The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-283-1122, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-283-1122 |
| Primary Part Number | 03060 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | ACTIVE |
| Width Across Flats | 0.505 INCHES NOMINAL IN |
| Head Height | 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Fastener Length | 1.720 INCHES MINIMUM AND 1.730 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.720 INCHES MINIMUM AND 1.730 INCHES MAXIMUM IN |
| Hardness Rating | 31.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PELLET THREADS |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Material | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.920 INCHES MINIMUM AND 0.938 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 |
|---|---|
| 03060 PRIMARY | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| Reference | Meaning |
|---|---|
| B4430 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division |
| 1809-1289 ITEM 4 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division |
NSN 5305-01-283-1122 is a Screw,cap,socket Head, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-283-1122 has 1 manufacturer part number on file: 03060 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
Key specifications for 03060: Width Across Flats: 0.505 INCHES NOMINAL IN; Head Height: 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Fastener Length: 1.720 INCHES MINIMUM AND 1.730 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 18 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.