The Washer,lock, cataloged under National Stock Number 5310-00-261-7158, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Stromberg-Carlson Corp a Plessey Telecommunications Co. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-261-7158 |
| Primary Part Number | 636123 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Stromberg-Carlson Corp a Plessey Telecommunications Co |
| Status | ACTIVE |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.396 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN |
| Material Thickness | 0.018 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.256 INCHES MINIMUM AND 0.267 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 |
|---|---|
| 636123 PRIMARY | Stromberg-Carlson Corp a Plessey Telecommunications Co (USA) |
| Reference | Meaning |
|---|---|
| 636123 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| 1920-02-00 | 5/9 Secondary reference Itw Shakeproof Automotive Products |
NSN 5310-00-261-7158 is a Washer,lock, manufactured by Stromberg-Carlson Corp a Plessey Telecommunications Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-261-7158 has 1 manufacturer part number on file: 636123 (Stromberg-Carlson Corp a Plessey Telecommunications Co).
Key specifications for 636123: Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.396 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN; Material Thickness: 0.018 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL. 5 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.