The Packing,preformed, cataloged under National Stock Number 5330-00-290-5175, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Struthers Wells Corp. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5330-00-290-5175 |
| Primary Part Number | 112-631 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Struthers Wells Corp |
| Status | ACTIVE |
| Material Document and Classification | 201 FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Rim Surface Width | 0.250 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | CUP |
| Peripheral Diameter | 4.000 INCHES NOMINAL IN |
| Center Hole Diameter | 3.250 INCHES NOMINAL IN |
| Material | ASBESTOS OVERALL |
| Joint Type | SCARF-PERIPHERAL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 112-631 PRIMARY | Struthers Wells Corp (USA) |
| Reference | Meaning |
|---|---|
| 112-631 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-00-290-5175 is a Packing,preformed, manufactured by Struthers Wells Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-290-5175 has 1 manufacturer part number on file: 112-631 (Struthers Wells Corp).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-427-0621. Verify interchangeability with system specifications before substitution.
Key specifications for 112-631: Material Document and Classification: 201 FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Rim Surface Width: 0.250 INCHES NOMINAL IN; Cross-Sectional Shape Style: CUP; Peripheral Diameter: 4.000 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.