The Washer,lock, cataloged under National Stock Number 5310-01-445-0771, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Spectro Scientific, Inc Dba Spectro Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-445-0771 |
| Primary Part Number | H10081 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Spectro Scientific, Inc Dba Spectro Inc |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 7.6 MILLIMETERS MAXIMUM MM |
| Material Thickness | 0.8 MILLIMETERS MINIMUM AND 1.0 MILLIMETERS MAXIMUM MM |
| Material | STEEL COMP 304 OVERALL |
| Hole Diameter | 4.1 MILLIMETERS MINIMUM AND 4.4 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| H10081 PRIMARY | Spectro Scientific, Inc Dba Spectro Inc (USA) |
| Reference | Meaning |
|---|---|
| 127BM4-A2 | 5/9 Secondary reference Metric and Multistandard Components Corp |
NSN 5310-01-445-0771 is a Washer,lock, manufactured by Spectro Scientific, Inc Dba Spectro Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-445-0771 has 1 manufacturer part number on file: H10081 (Spectro Scientific, Inc Dba Spectro Inc).
Key specifications for H10081: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 7.6 MILLIMETERS MAXIMUM MM; Material Thickness: 0.8 MILLIMETERS MINIMUM AND 1.0 MILLIMETERS MAXIMUM MM; Material: STEEL COMP 304 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.