The O-Ring, cataloged under National Stock Number 5331-00-679-9858, 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 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-679-9858 |
| Primary Part Number | 8756489 |
| 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 | 0.211 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN |
| Specification/standard Data | 96906-DOD-STD-00100D GOVERNMENT STANDARD AND 80204-ANSI Y14.5M-1982 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Center Hole Diameter | 17.250 INCHES MINIMUM AND 17.344 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 8756489 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 8756489 | Fnss Savunma Sistemleri Anonim Sirketi (TUR) |
| Reference | Meaning |
|---|---|
| 5330006799858 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 10875089 | 3/1 Design control — primary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5331-00-679-9858 is a O-Ring, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-679-9858 has 2 manufacturer part numbers on file: 8756489 (U S Army Tank Automotive Command Amsta-Im-Mm), 8756489 (Fnss Savunma Sistemleri Anonim Sirketi).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-049-2226. Verify interchangeability with system specifications before substitution.
Key specifications for 8756489: Cross-Sectional Height: 0.211 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN; Specification/standard Data: 96906-DOD-STD-00100D GOVERNMENT STANDARD AND 80204-ANSI Y14.5M-1982 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Center Hole Diameter: 17.250 INCHES MINIMUM AND 17.344 INCHES MAXIMUM IN; End Item Identification: M113. 4 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.