The O-Ring, cataloged under National Stock Number 5331-00-462-0907, 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. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-462-0907 |
| Primary Part Number | 11639519-2 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Center Hole Diameter | 5.910 INCHES NOMINAL IN |
| Material | RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR |
| 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 |
|---|---|
| 11639519-2 | Fnss Savunma Sistemleri Anonim Sirketi (TUR) |
| 11639519-2 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5331PL0651023 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5330004620907 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 11639519-2 | 5/9 Secondary reference Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc |
| 11639519 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| 2AT412 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Corp |
| 10093368 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5331-00-462-0907 is a O-Ring, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-462-0907 has 2 manufacturer part numbers on file: 11639519-2 (Fnss Savunma Sistemleri Anonim Sirketi), 11639519-2 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5331-00-463-0200. Verify interchangeability with system specifications before substitution.
Key specifications for 11639519-2: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Center Hole Diameter: 5.910 INCHES NOMINAL IN; End Item Identification: MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE; ARMORED MULTI-PURPOSE VEHICLE (AMPV); Material: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR. 3 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.