The Washer,recessed, cataloged under National Stock Number 5310-01-499-3382, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 5 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-499-3382 |
| Primary Part Number | 1229-R-4100 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Outside Diameter | 2.750 INCHES NOMINAL IN |
| Material Thickness | 0.016 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.656 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 |
|---|---|
| 1229-R-4100 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
NSN 5310-01-499-3382 is a Washer,recessed, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-499-3382 has 1 manufacturer part number on file: 1229-R-4100 (Meritor Heavy Vehicle Systems, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-594-2355, 5310-01-605-9112. Verify interchangeability with system specifications before substitution.
Key specifications for 1229-R-4100: Style Designator: RECESSED; Outside Diameter: 2.750 INCHES NOMINAL IN; Material Thickness: 0.016 INCHES NOMINAL IN; End Item Identification: M871A3 SEMI-TRAILER,22.5 TON,2330-01-458-6865 END ITEM. 5 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.