The Stud,positive Lock, cataloged under National Stock Number 5325-00-202-1579, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-202-1579 |
| Primary Part Number | 872640 |
| Item Name | Stud,positive Lock |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Undercut Length | 0.031 INCHES NOMINAL IN |
| Undercut Diameter | 0.288 INCHES NOMINAL IN |
| Positive Lock Stud Shank Style | STUD SHANK |
| Major Diameter Length | 0.262 INCHES NOMINAL IN |
| Shoulder Height | 0.186 INCHES NOMINAL IN |
| Stud Shank Hole Depth | 0.312 INCHES NOMINAL IN |
| End Overall Length | 0.612 INCHES NOMINAL IN |
| Stud Shank Hole Diameter | 0.187 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OVERALL |
| Stud Shank Overall Height | 0.356 INCHES NOMINAL IN |
| Positive Lock Stud Head Style | STUD HEAD |
| Head Diameter | 0.313 INCHES NOMINAL IN |
| Shank Major Diameter | 0.312 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 |
|---|---|
| 872640 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5325-00-202-1579 is a Stud,positive Lock, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-202-1579 has 1 manufacturer part number on file: 872640 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 872640: Undercut Length: 0.031 INCHES NOMINAL IN; Undercut Diameter: 0.288 INCHES NOMINAL IN; Positive Lock Stud Shank Style: STUD SHANK; Major Diameter Length: 0.262 INCHES NOMINAL IN. 13 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.