The Washer,recessed, cataloged under National Stock Number 5310-00-497-7329, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-497-7329 |
| Primary Part Number | 2578624-001A |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | AMS 4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.960 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN |
| Material Thickness | 0.258 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN |
| Recess Diameter | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN |
| Test Data Document | 81349-MIL-I-6866 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | ALUMINUM ALLOY OVERALL |
| Hole Diameter | 1.255 INCHES MINIMUM AND 1.265 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 | X |
| Part Number | Manufacturer |
|---|---|
| 2578624-001A PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2578624-001A | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 2578624-001A | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
| 2578624-001A | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| 2578624-001A | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
NSN 5310-00-497-7329 is a Washer,recessed, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-497-7329 has 1 manufacturer part number on file: 2578624-001A (Goodrich Corporation).
Key specifications for 2578624-001A: Style Designator: RECESSED; Material Document and Classification: AMS 4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.960 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN; Material Thickness: 0.258 INCHES MINIMUM AND 0.268 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.