The Screw,shoulder, cataloged under National Stock Number 5305-01-282-7502, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-282-7502 |
| Primary Part Number | 5597762-1 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Head Height | 1.000 INCHES NOMINAL IN |
| Fastener Length | 11.890 INCHES NOMINAL IN |
| Shoulder Length | 3.940 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | MIL-P-24441/1 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-P-24441/2 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-P-2444/3 MIL SPEC SINGLE TREATMENT RESPONSE FIRST SHOULDER |
| Shoulder Diameter | 0.812 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 5.780 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | MIL-S-5626 COND D-1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | CETYL ALCOHOL LUBRICANT |
| Head Style | SPADE |
| Thread Direction | LEFT-HAND |
| Head Length | 0.812 INCHES NOMINAL IN |
| Width Between Flats | 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN |
| Surface Treatment | PAINT FIRST SHOULDER |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORQUE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 5597762-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| 5597762-1 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5305-01-282-7502 is a Screw,shoulder, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-282-7502 has 1 manufacturer part number on file: 5597762-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 5597762-1: Head Height: 1.000 INCHES NOMINAL IN; Fastener Length: 11.890 INCHES NOMINAL IN; Shoulder Length: 3.940 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: MIL-P-24441/1 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-P-24441/2 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-P-2444/3 MIL SPEC SINGLE TREATMENT RESPONSE FIRST SHOULDER. 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.