The Washer,recessed, cataloged under National Stock Number 5310-00-405-2498, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 8 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 | 5310-00-405-2498 |
| Primary Part Number | 6851262 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | SAE 1018 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 4.345 INCHES NOMINAL IN |
| Material Thickness | 0.500 INCHES NOMINAL IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Material | STEEL OVERALL |
| Hole Diameter | 3.120 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 |
|---|---|
| 6851262 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
NSN 5310-00-405-2498 is a Washer,recessed, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-405-2498 has 1 manufacturer part number on file: 6851262 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6851262: Top Recess Angle: 90.0 DEGREES NOMINAL; Style Designator: RECESSED BOTH SIDES; Material Document and Classification: SAE 1018 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 4.345 INCHES NOMINAL IN. 8 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.