The Washer,lock, cataloged under National Stock Number 5310-00-263-8416, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Te Connectivity Corporation. Government technical data includes 6 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-263-8416 |
| Primary Part Number | 51804-011 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.200 INCHES NOMINAL IN |
| Material Thickness | 0.030 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.125 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 |
NSN 5310-00-263-8416 is a Washer,lock, manufactured by Te Connectivity Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-263-8416 has 2 manufacturer part numbers on file: 51804011 (Tyco Electronics Uk Ltd), 51804-011 (Te Connectivity Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-404-3826. Verify interchangeability with system specifications before substitution.
Key specifications for 51804-011: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.200 INCHES NOMINAL IN; Material Thickness: 0.030 INCHES NOMINAL IN; Surface Treatment: CADMIUM AND CHROMATE OVERALL. 6 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.