The Washer,lock, cataloged under National Stock Number 5310-00-342-5436, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 7 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 | 5310-00-342-5436 |
| Primary Part Number | 8193787 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.253 INCHES MAXIMUM IN |
| Material Thickness | 0.031 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Material | COPPER ALLOY OR COPPER ALLOY AND SILICON ALLOY OVERALL |
| Hole Diameter | 0.141 INCHES MINIMUM AND 0.148 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 |
|---|---|
| 8193787 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5310-00-342-5436 is a Washer,lock, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-342-5436 has 1 manufacturer part number on file: 8193787 (Us Army Aviation and Missile Command).
Key specifications for 8193787: Surface Treatment Document and Classification: QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.253 INCHES MAXIMUM IN; Material Thickness: 0.031 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN. 7 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.