The Washer,seal, cataloged under National Stock Number 5310-01-353-2056, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-353-2056 |
| Primary Part Number | 94708A312 |
| Item Name | Washer,seal |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Style Designator | CONCAVE |
| Outside Diameter | 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN |
| Material | RUBBER NATURAL SEALING ELEMENT |
| Material | STEEL COMP 302 OR STEEL COMP 303 OVERALL |
| Material | STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 BODY |
| Hole Diameter | 0.230 INCHES NOMINAL0.230 INCHES NOMINAL 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 |
|---|---|
| 94708A312 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 8721370 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5310-01-353-2056 is a Washer,seal, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-353-2056 has 1 manufacturer part number on file: 94708A312 (Mcmaster-Carr Supply Co).
Key specifications for 94708A312: Overall Height: 0.109 INCHES NOMINAL0.109 INCHES NOMINAL IN; Style Designator: CONCAVE; Outside Diameter: 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN; Material: RUBBER NATURAL SEALING ELEMENT. 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.