The Washer,lock, cataloged under National Stock Number 5310-01-118-2248, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-118-2248 |
| Primary Part Number | 18493 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Stanadyne Corporation Dba Stanadyne Diesel Systems |
| Status | ACTIVE |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.365 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN |
| Material Thickness | 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.195 INCHES MINIMUM AND 0.204 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 |
|---|---|
| 18493 | Stanadyne Corporation Dba Stanadyne Diesel Systems (USA) |
| Reference | Meaning |
|---|---|
| 18493 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-118-2248 is a Washer,lock, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-118-2248 has 1 manufacturer part number on file: 18493 (Stanadyne Corporation Dba Stanadyne Diesel Systems).
4 possible matches (shared part number, not a government interchangeability claim): 5355-01-302-2621, 4730-01-516-9562, 5840-01-554-4703. Verify interchangeability with system specifications before substitution.
Key specifications for 18493: Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.365 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN; Material Thickness: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN; Material: STEEL 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.