The O-Ring, cataloged under National Stock Number 5331-00-422-1656, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Mbda Uk Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-422-1656 |
| Primary Part Number | A07637 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Mbda Uk Ltd |
| Status | ACTIVE |
| Cross-Sectional Height | 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.224 INCHES MINIMUM AND 0.234 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 |
|---|---|
| A07637 | Mbda Uk Ltd (GBR) |
| 080-04273-78 | Moog Controls Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 5497605-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 080-04273-78 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-00-422-1656 is a O-Ring, manufactured by Mbda Uk Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-422-1656 has 2 manufacturer part numbers on file: A07637 (Mbda Uk Ltd), 080-04273-78 (Moog Controls Ltd).
Key specifications for A07637: Cross-Sectional Height: 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN; Center Hole Diameter: 0.224 INCHES MINIMUM AND 0.234 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.