The Washer,lock, cataloged under National Stock Number 5310-01-077-9649, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Prestolite Electric Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-077-9649 |
| Primary Part Number | 74133 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 1,CLASS C FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | FLAT EXTERNAL TEETH |
| Outside Diameter | 0.306 INCHES MINIMUM AND 0.306 INCHES MINIMUM AND 0.317 INCHES MAXIMUM0.317 INCHES MAXIMUM IN |
| Material Thickness | 0.020 INCHES NOMINAL0.020 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.142 INCHES MINIMUM AND 0.142 INCHES MINIMUM AND 0.150 INCHES MAXIMUM0.150 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 |
|---|---|
| 74133 PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| 74133 | 5/9 Secondary reference Prestolite Electric Inc |
NSN 5310-01-077-9649 is a Washer,lock, manufactured by Prestolite Electric Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-077-9649 has 1 manufacturer part number on file: 74133 (Prestolite Electric Inc).
Key specifications for 74133: Surface Treatment Document and Classification: QQ-P-416,TYPE 1,CLASS C FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: FLAT EXTERNAL TEETH; Outside Diameter: 0.306 INCHES MINIMUM AND 0.306 INCHES MINIMUM AND 0.317 INCHES MAXIMUM0.317 INCHES MAXIMUM IN; Material Thickness: 0.020 INCHES NOMINAL0.020 INCHES NOMINAL 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.