The O-Ring, cataloged under National Stock Number 5331-01-090-4870, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Gyrus Acmi L.p. Dba Circon-Acmi Div. 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. 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 | 5331-01-090-4870 |
| Primary Part Number | 100-1-4431 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Gyrus Acmi L.p. Dba Circon-Acmi Div |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.728 INCHES MINIMUM AND 0.746 INCHES MAXIMUM IN |
| Material | RUBBER |
| 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 |
|---|---|
| 100-1-4431 PRIMARY | Gyrus Acmi L.p. Dba Circon-Acmi Div (USA) |
NSN 5331-01-090-4870 is a O-Ring, manufactured by Gyrus Acmi L.p. Dba Circon-Acmi Div, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-090-4870 has 1 manufacturer part number on file: 100-1-4431 (Gyrus Acmi L.p. Dba Circon-Acmi Div).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-512-6502. Verify interchangeability with system specifications before substitution.
Key specifications for 100-1-4431: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 0.728 INCHES MINIMUM AND 0.746 INCHES MAXIMUM IN; Material: RUBBER. 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.