The Washer,seal, cataloged under National Stock Number 5310-01-617-1535, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hydraspecma Ab. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-617-1535 |
| Primary Part Number | 183072 |
| Item Name | Washer,seal |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hydraspecma Ab |
| Status | ACTIVE |
| Style Designator | CONCAVE |
| Outside Diameter | 20.57 MILLIMETERS NOMINAL MM |
| Hole Diameter | 13.74 MILLIMETERS NOMINAL 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 |
|---|---|
| CC-0009575 | Independent Rough Terrain Center Llc (USA) |
| 183072 PRIMARY | Hydraspecma Ab (SWE) |
| Reference | Meaning |
|---|---|
| 183072 | 3/9 Design control — primary reference Specma Dunlop Hydraulic Ab |
NSN 5310-01-617-1535 is a Washer,seal, manufactured by Hydraspecma Ab, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-617-1535 has 2 manufacturer part numbers on file: CC-0009575 (Independent Rough Terrain Center Llc), 183072 (Hydraspecma Ab).
Key specifications for 183072: Overall Height: 2.0 MILLIMETERS NOMINAL MM; Style Designator: CONCAVE; Outside Diameter: 20.57 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: SEALING WASHER. 3 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.