The Washer,recessed, cataloged under National Stock Number 5310-00-836-9446, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-836-9446 |
| Primary Part Number | 6756528 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.221 INCHES MINIMUM AND 2.223 INCHES MAXIMUM IN |
| Recess Depth | 0.100 INCHES NOMINAL IN |
| Material Thickness | 0.365 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Recess Diameter | 0.640 INCHES NOMINAL IN |
| Material | STEEL COMP 1211 OVERALL |
| Hole Diameter | 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Recess Angle | 60.0 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 |
|---|---|
| 6756528 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6756528 | C/1 Advisory reference — outside the item-of-supply concept Rolls-Royce Solutions America Inc |
| 6756528 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 5310-00-836-9446 is a Washer,recessed, manufactured by Rolls-Royce Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-836-9446 has 1 manufacturer part number on file: 6756528 (Rolls-Royce Corporation).
Key specifications for 6756528: Style Designator: RECESSED; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 2.221 INCHES MINIMUM AND 2.223 INCHES MAXIMUM IN; Recess Depth: 0.100 INCHES NOMINAL 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.