The Washer,lock, cataloged under National Stock Number 5310-01-160-2053, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lehigh Armstrong Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-160-2053 |
| Primary Part Number | A 10 DIN 127 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lehigh Armstrong Inc |
| Status | ACTIVE |
| Hardness Rating | 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 18.1 MILLIMETERS NOMINAL MM |
| Material Thickness | 2.20 MILLIMETERS MINIMUM AND 2.35 MILLIMETERS MAXIMUM MM |
| Material | STEEL OVERALL |
| Hole Diameter | 10.2 MILLIMETERS MINIMUM AND 10.8 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 |
|---|---|
| A 10 DIN 127 PRIMARY | Lehigh Armstrong Inc (USA) |
| Reference | Meaning |
|---|---|
| PS-020045 | 5/9 Secondary reference Santana Motor Sa |
| DIN127M10 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-160-2053 is a Washer,lock, manufactured by Lehigh Armstrong Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-160-2053 has 1 manufacturer part number on file: A 10 DIN 127 (Lehigh Armstrong Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-602-0345. Verify interchangeability with system specifications before substitution.
Key specifications for A 10 DIN 127: Hardness Rating: 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 18.1 MILLIMETERS NOMINAL MM; Material Thickness: 2.20 MILLIMETERS MINIMUM AND 2.35 MILLIMETERS MAXIMUM MM. 6 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.