The O-Ring, cataloged under National Stock Number 5331-00-599-2721, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-599-2721 |
| Primary Part Number | 8014556 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Cross-Sectional Height | 0.094 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE |
| 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 |
|---|---|
| 8014556 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 335580090103 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 3-355-8-72-100- 02 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 5331PL1379156 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5331-00-599-2721 is a O-Ring, manufactured by Us Army Aviation and Missile Command, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-599-2721 has 1 manufacturer part number on file: 8014556 (Us Army Aviation and Missile Command).
2 possible matches (shared part number, not a government interchangeability claim): 5331-01-291-3582, 5331-01-365-5780. Verify interchangeability with system specifications before substitution.
Key specifications for 8014556: Cross-Sectional Height: 0.094 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN; Center Hole Diameter: 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Material: PLASTIC POLYTETRAFLUOROETHYLENE. 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.