The Washer,shouldered, cataloged under National Stock Number 5310-00-612-7541, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-612-7541 |
| Primary Part Number | E62 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Shoulder Height | 0.250 INCHES NOMINAL IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | SAE 62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.312 INCHES MINIMUM AND 2.328 INCHES MAXIMUM IN |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Shoulder Diameter | 2.247 INCHES MINIMUM AND 2.249 INCHES MAXIMUM IN |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 1.797 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 |
|---|---|
| E62 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| Reference | Meaning |
|---|---|
| 3247012PC11 | 3/2 Design control — primary reference U.S. Government activity |
| R400PC11 | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
NSN 5310-00-612-7541 is a Washer,shouldered, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-612-7541 has 1 manufacturer part number on file: E62 (Circor Naval Solutions Llc Dba Warren Pumps).
1 possible match (shared part number, not a government interchangeability claim): 1650-01-603-5227. Verify interchangeability with system specifications before substitution.
Key specifications for E62: Shoulder Height: 0.250 INCHES NOMINAL IN; Style Designator: SHOULDERED; Material Document and Classification: SAE 62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 2.312 INCHES MINIMUM AND 2.328 INCHES MAXIMUM IN. 8 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.