The Washer,recessed, cataloged under National Stock Number 5310-00-522-7170, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Meggitt Aircraft Braking Systems Corporation. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-522-7170 |
| Primary Part Number | 9525629 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Meggitt Aircraft Braking Systems Corporation |
| Status | ACTIVE |
| Top Recess Diameter | 0.401 INCHES NOMINAL IN |
| Bottom Recess Diameter | 0.401 INCHES NOMINAL IN |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | MIL-S-6758,COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Material Thickness | 0.119 INCHES NOMINAL IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Material | STEEL COMP 4130 OVERALL |
| Hole Diameter | 0.319 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 |
|---|---|
| 9525629 PRIMARY | Meggitt Aircraft Braking Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 9525629 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
NSN 5310-00-522-7170 is a Washer,recessed, manufactured by Meggitt Aircraft Braking Systems Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-522-7170 has 1 manufacturer part number on file: 9525629 (Meggitt Aircraft Braking Systems Corporation).
Key specifications for 9525629: Top Recess Diameter: 0.401 INCHES NOMINAL IN; Bottom Recess Diameter: 0.401 INCHES NOMINAL IN; Top Recess Angle: 90.0 DEGREES NOMINAL; Style Designator: RECESSED BOTH SIDES. 10 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.