The Washer,recessed, cataloged under National Stock Number 5310-01-115-8218, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-115-8218 |
| Primary Part Number | 29634 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-A-225/8,TEMPER T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.440 INCHES NOMINAL IN |
| Material Thickness | 0.060 INCHES NOMINAL IN |
| Recess Diameter | 0.300 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE OVERALL |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Hole Diameter | 0.156 INCHES NOMINAL IN |
| Recess Angle | 100.0 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 |
|---|---|
| 29634 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 29634 | 5/9 Secondary reference United Technologies Corp Hamilton Sundstrand Corp |
NSN 5310-01-115-8218 is a Washer,recessed, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-115-8218 has 1 manufacturer part number on file: 29634 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-139-8400. Verify interchangeability with system specifications before substitution.
Key specifications for 29634: Surface Treatment Document and Classification: MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A; Style Designator: RECESSED; Material Document and Classification: QQ-A-225/8,TEMPER T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.440 INCHES NOMINAL IN. 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.