The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-331-7565, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-331-7565 |
| Primary Part Number | 13084948-504 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Width Across Flats | 0.035 INCHES NOMINAL IN |
| Head Height | 0.015 INCHES MAXIMUM IN |
| Fastener Length | 0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.165 INCHES NOMINAL IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.060 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 80 |
| Material | STEEL COMP 4130 AND STEEL COMP 5132 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNRF |
| Head Diameter | 0.104 INCHES MINIMUM AND 0.114 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 |
|---|---|
| 13084948-504 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 13084948-504 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1308494-504 | 5/9 Secondary reference Lockheed Martin Corporation |
| 13084948-504$ | 5/9 Secondary reference Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
| 38030-90-F-3-C | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5305-01-331-7565 is a Screw,cap,socket Head, manufactured by Lockheed Martin Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-331-7565 has 2 manufacturer part numbers on file: 13084948-504 (Sps Technologies, Llc Dba PB Fasteners), 13084948-504 (Lockheed Martin Corporation).
Key specifications for 13084948-504: Width Across Flats: 0.035 INCHES NOMINAL IN; Head Height: 0.015 INCHES MAXIMUM IN; Fastener Length: 0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC 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.