The O-Ring Set, cataloged under National Stock Number 5331-01-570-1597, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Womack Machine Supply Co of Houston, Llc Dba Womack Machine Supply Co of Alab Div Womack Machine Supply Company of Houston, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring Set |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Womack Machine Supply Co of Houston, Llc Dba Womack Machine Supply Co of Alab Div Womack Machine Supply Company of Houston, Llc (CAGE 1SV90) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-570-1597 |
| Primary Part Number | 4002141 |
| Item Name | O-Ring Set |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Womack Machine Supply Co of Houston, Llc Dba Womack Machine Supply Co of Alab Div Womack Machine Supply Company of Houston, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 4002141 PRIMARY | Womack Machine Supply Co of Houston, Llc Dba Womack Machine Supply Co of Alab Div Womack Machine Supply Company of Houston, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4002145 | D/9 Drawing number reference only Womack Machine Supply Co of Houston, Llc Dba Womack Machine Supply Co of Alab Div Womack Machine Supply Company of Houston, Llc |
NSN 5331-01-570-1597 is a O-Ring Set, manufactured by Womack Machine Supply Co of Houston, Llc Dba Womack Machine Supply Co of Alab Div Womack Machine Supply Company of Houston, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-570-1597 has 1 manufacturer part number on file: 4002141 (Womack Machine Supply Co of Houston, Llc Dba Womack Machine Supply Co of Alab Div Womack Machine Supply Company of Houston, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-570-1608. Verify interchangeability with system specifications before substitution.
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.