The Washer,lock, cataloged under National Stock Number 5310-01-046-3170, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ametek, Inc. Div Aerospace & Defense. 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 | 5310-01-046-3170 |
| Primary Part Number | L051077 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ametek, Inc. Div Aerospace & Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | 18-A,FSCM 61349 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.280 INCHES MAXIMUM0.280 INCHES MAXIMUM IN |
| Material Thickness | 0.017 INCHES MINIMUM AND 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM0.021 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Material | COPPER ALLOY 510 OVERALL |
| Hole Diameter | 0.129 INCHES MINIMUM AND 0.129 INCHES MINIMUM AND 0.136 INCHES MAXIMUM0.136 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 |
|---|---|
| L051077 PRIMARY | Ametek, Inc. Div Aerospace & Defense (USA) |
NSN 5310-01-046-3170 is a Washer,lock, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-046-3170 has 1 manufacturer part number on file: L051077 (Ametek, Inc. Div Aerospace & Defense).
Key specifications for L051077: Surface Treatment Document and Classification: 18-A,FSCM 61349 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.280 INCHES MAXIMUM0.280 INCHES MAXIMUM IN; Material Thickness: 0.017 INCHES MINIMUM AND 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM0.021 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.