The Packing Assembly, cataloged under National Stock Number 5330-01-533-4899, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Twc the Valve Company, L.l.c.. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-01-533-4899 |
| Primary Part Number | 7510-232-1 |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Twc the Valve Company, L.l.c. |
| Status | ACTIVE |
| Outside Diameter | 1.375 INCHES NOMINAL IN |
| Material Document and Classification | MIL-P-17303,TYPE E,CL 2,SYMBOL 111 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR PACKING |
| Inside Diameter | 0.875 INCHES NOMINAL IN |
| Height | 1.500 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 681403 SET | Twc the Valve Company, L.l.c. (USA) |
| 7510-232-1 PRIMARY | Twc the Valve Company, L.l.c. (USA) |
| N-11398-1-3PC13(3IN) | Twc the Valve Company, L.l.c. (USA) |
| Reference | Meaning |
|---|---|
| 7510-232-1 | 5/9 Secondary reference The Walworth Company |
| N-11398-1-3PC13(3IN) | 5/9 Secondary reference The Walworth Company |
NSN 5330-01-533-4899 is a Packing Assembly, manufactured by Twc the Valve Company, L.l.c., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-533-4899 has 3 manufacturer part numbers on file: 681403 SET (Twc the Valve Company, L.l.c.), 7510-232-1 (Twc the Valve Company, L.l.c.), N-11398-1-3PC13(3IN) (Twc the Valve Company, L.l.c.).
Key specifications for 7510-232-1: Outside Diameter: 1.375 INCHES NOMINAL IN; Material Document and Classification: MIL-P-17303,TYPE E,CL 2,SYMBOL 111 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SQUARE/RECTANGULAR PACKING; Inside Diameter: 0.875 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.