The Washer,recessed, cataloged under National Stock Number 5310-01-189-3525, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Woodward, Inc. Div Fuel Systems and Controls. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-189-3525 |
| Primary Part Number | 3254-022 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Woodward, Inc. Div Fuel Systems and Controls |
| Status | ACTIVE |
| Surface Treatment Document and Classification | SP-151,FSCM 66503 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.745 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Material Thickness | 0.1560 INCHES MINIMUM AND 0.1565 INCHES MAXIMUM IN |
| Recess Diameter | 0.519 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 630 OVERALL |
| Hole Diameter | 0.439 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN |
| Recess Angle | 90.0 DEGREES NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 3254-022 PRIMARY | Woodward, Inc. Div Fuel Systems and Controls (USA) |
NSN 5310-01-189-3525 is a Washer,recessed, manufactured by Woodward, Inc. Div Fuel Systems and Controls, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-189-3525 has 1 manufacturer part number on file: 3254-022 (Woodward, Inc. Div Fuel Systems and Controls).
Key specifications for 3254-022: Surface Treatment Document and Classification: SP-151,FSCM 66503 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.745 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Material Thickness: 0.1560 INCHES MINIMUM AND 0.1565 INCHES MAXIMUM IN. 9 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.