The Washer,recessed, cataloged under National Stock Number 5310-00-072-0390, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hunt Valve Company, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-072-0390 |
| Primary Part Number | N4001822 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Outside Diameter | 3.000 INCHES NOMINAL IN |
| Recess Depth | 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Recess Diameter | 1.625 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| Hole Diameter | 1.130 INCHES MINIMUM AND 1.140 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 |
|---|---|
| N4001822 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| N4001822 | 5/9 Secondary reference P J Valves Inc |
NSN 5310-00-072-0390 is a Washer,recessed, manufactured by Hunt Valve Company, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-072-0390 has 1 manufacturer part number on file: N4001822 (Hunt Valve Company, Inc.).
Key specifications for N4001822: Overall Height: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Style Designator: RECESSED; Outside Diameter: 3.000 INCHES NOMINAL IN; Recess Depth: 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN. 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.