The Fastener,positive Lock, cataloged under National Stock Number 5325-01-703-4400, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Southco Inc.. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-703-4400 |
| Primary Part Number | E5-5-402-UU1-12 |
| Item Name | Fastener,positive Lock |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Southco Inc. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MANUFACTURE REFERENCE MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Major Diameter Length | 6.0 MILLIMETERS NOMINAL MM |
| Material Document and Classification | MANUFACTURE REFERENCE MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | ZINC OVERALL |
| Material | ZINC AND STEEL OVERALL |
| Positive Lock Stud Head Style | STUD HEAD |
| Mounting Hole Diameter | 20.0 MILLIMETERS MINIMUM AND 20.2 MILLIMETERS MAXIMUM MM |
| Head Diameter | 28.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| E5-5-402-UU1-12 PRIMARY | Southco Inc. (USA) |
| X00E50000057 | Rolls-Royce Solutions Gmbh (DEU) |
NSN 5325-01-703-4400 is a Fastener,positive Lock, manufactured by Southco Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-703-4400 has 2 manufacturer part numbers on file: E5-5-402-UU1-12 (Southco Inc.), X00E50000057 (Rolls-Royce Solutions Gmbh).
Key specifications for E5-5-402-UU1-12: Surface Treatment Document and Classification: MANUFACTURE REFERENCE MFR REF SINGLE TREATMENT RESPONSE OVERALL; Major Diameter Length: 6.0 MILLIMETERS NOMINAL MM; Material Document and Classification: MANUFACTURE REFERENCE MFR REF SINGLE MATERIAL RESPONSE OVERALL; Special Features: ACCESS RESTRICTION:KEY LOCKING;HEAD STYLE:CYLINDER LOCK:SERIES:20.1 MM SIZE;CLASS:E5-CAM LATCHE;COMPONENTS:LOCK PLUG,HOUSING,CAM,O-RING,SEALING WASHER,HEX FLANGE SCREW,MOUNTING NUT,AND 2 KEYS MM. 8 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.