The Washer,seal, cataloged under National Stock Number 5310-01-583-9012, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Arvinmeritor Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-583-9012 |
| Primary Part Number | 1229B4838 |
| Item Name | Washer,seal |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Arvinmeritor Inc |
| Status | ACTIVE |
| Outside Diameter | 1.950 INCHES NOMINAL IN |
| Hole Diameter | 1.470 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 |
|---|---|
| 1229B4838 PRIMARY | Arvinmeritor Inc (USA) |
| Reference | Meaning |
|---|---|
| 1003980 | 5/2 Secondary reference U.S. Government activity |
| 1003980 | 5/9 Secondary reference Dhs Systems Llc |
NSN 5310-01-583-9012 is a Washer,seal, manufactured by Arvinmeritor Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-583-9012 has 1 manufacturer part number on file: 1229B4838 (Arvinmeritor Inc).
Key specifications for 1229B4838: Outside Diameter: 1.950 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: WASHER,SEAL RETAINER; End Item Identification: 6115-01-572-3944; Hole Diameter: 1.470 INCHES NOMINAL IN. 2 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.