The Washer,lock, cataloged under National Stock Number 5310-00-722-4158, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-722-4158 |
| Primary Part Number | N407P38C11 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.2968 INCHES NOMINAL IN |
| Material Thickness | 0.040 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Hole Diameter | 0.168 INCHES MINIMUM AND 0.175 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 |
|---|---|
| N407P38C11 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| HP176-636 | 5/2 Secondary reference U.S. Government activity |
| N405P38C6 | 5/9 Secondary reference General Electric Co Materials Information Services |
| N405P38C6 | 5/9 Secondary reference U.S. Government activity |
| 0158122 | 5/9 Secondary reference Gulf and Western Mfg Co Eagle Signal Systems Div |
| N407P38C11 | 5/9 Secondary reference General Electric Company |
| N405P38C6 | 5/9 Secondary reference General Electric Company |
| ND37042-045 | 3/9 Design control — primary reference Solartron Electronics Inc Weston Instruments Div |
NSN 5310-00-722-4158 is a Washer,lock, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-722-4158 has 1 manufacturer part number on file: N407P38C11 (Lockheed Martin Corporation Div Rms).
Key specifications for N407P38C11: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.2968 INCHES NOMINAL IN; Material Thickness: 0.040 INCHES NOMINAL IN; Surface Treatment: CADMIUM 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.