The O-Ring, cataloged under National Stock Number 5331-00-633-6827, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Prestolite Electric Inc. 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-633-6827 |
| Primary Part Number | Z053074981 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 3.222 INCHES MINIMUM AND 3.252 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 |
|---|---|
| Z053074981 PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| 10505808 | 7/2 Vendor item drawing reference General Dynamics Land Systems Canadacorp |
| 71041 | 5/9 Secondary reference Prestolite Electric Inc |
| 74981 | 5/9 Secondary reference Prestolite Electric Inc |
| Z053074981 | 5/9 Secondary reference Prestolite Electric Inc |
| 10394091 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| Z053071041 | 5/9 Secondary reference Prestolite Electric Inc |
| Z053074981 | 3/9 Design control — primary reference Prestolite Electric Inc |
| 2ER854 | 5/9 Secondary reference Oshkosh Corp |
| 2ER854 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5331-00-633-6827 is a O-Ring, manufactured by Prestolite Electric Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-633-6827 has 1 manufacturer part number on file: Z053074981 (Prestolite Electric Inc).
8 possible matches (shared part number, not a government interchangeability claim): 5945-00-842-3251, 6105-00-983-5610, 5935-01-003-2654. Verify interchangeability with system specifications before substitution.
Key specifications for Z053074981: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 3.222 INCHES MINIMUM AND 3.252 INCHES MAXIMUM IN; End Item Identification: NSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM); MRAP - M-ATV; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS); Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.