The O-Ring, cataloged under National Stock Number 5331-00-078-0304, 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 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-078-0304 |
| Primary Part Number | XA-744AW |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.139 INCHES NOMINAL IN |
| 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 |
|---|---|
| XA-744AW PRIMARY | Prestolite Electric Inc (USA) |
| 35-741 | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| XA-744AW | 5/9 Secondary reference Prestolite Electric Inc |
| 35-741 | 5/9 Secondary reference Prestolite Electric Inc |
| 5330000780304 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5331-00-078-0304 is a O-Ring, manufactured by Prestolite Electric Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-078-0304 has 2 manufacturer part numbers on file: XA-744AW (Prestolite Electric Inc), 35-741 (Prestolite Electric Inc).
2 possible matches (shared part number, not a government interchangeability claim): 6620-00-373-9349, 7050-01-675-7789. Verify interchangeability with system specifications before substitution.
Key specifications for XA-744AW: Cross-Sectional Height: 0.139 INCHES NOMINAL IN. 1 specification is 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.