The O-Ring, cataloged under National Stock Number 5331-01-566-0982, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5331-01-566-0982 |
| Primary Part Number | 12508570-001 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| 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 |
|---|---|
| 12508570-001 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12508570-001 | Oshkosh Defense Llc (USA) |
| 22KP618 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 12508570-001 | 5/9 Secondary reference Oshkosh Corp |
| 22KP618 | 5/9 Secondary reference Oshkosh Corp |
| 12508489 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5331-01-566-0982 is a O-Ring, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-566-0982 has 3 manufacturer part numbers on file: 12508570-001 (U S Army Tank Automotive Command Amsta-Im-Mm), 12508570-001 (Oshkosh Defense Llc), 22KP618 (Oshkosh Defense Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-566-0992, 2510-01-566-1332. Verify interchangeability with system specifications before substitution.
Key specifications for 12508570-001: Special Features: NHA LEFT DOOR ASSEMBLY; End Item Identification: 2320-01-534-1103; TRUCK, TANK. 0 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.