The Screw,shoulder, cataloged under National Stock Number 5305-01-285-5961, 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 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-285-5961 |
| Primary Part Number | 717801707-001 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Width Across Flats | 0.078 INCHES NOMINAL IN |
| Head Height | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.282 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN |
| Shoulder Length | 0.1255 INCHES MINIMUM AND 0.1275 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.1235 INCHES MINIMUM AND 0.1245 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.156 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.250 INCHES NOMINAL 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 |
|---|---|
| 717801707-001 | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 44D10SP | 3/9 Design control — primary reference Allied Devices Corp Dba Absolute Precision Co |
| GS550CP04-2 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
NSN 5305-01-285-5961 is a Screw,shoulder, manufactured by Lockheed Martin Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-285-5961 has 1 manufacturer part number on file: 717801707-001 (Lockheed Martin Corporation).
Key specifications for 717801707-001: Width Across Flats: 0.078 INCHES NOMINAL IN; Head Height: 0.125 INCHES NOMINAL IN; Fastener Length: 0.282 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN; Shoulder Length: 0.1255 INCHES MINIMUM AND 0.1275 INCHES MAXIMUM FIRST SHOULDER IN. 19 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.