The Seal,piston, cataloged under National Stock Number 5330-00-435-2737, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is John Crane Uk Ltd. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Seal,piston |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Twiflex Ltd (CAGE U0912); John Crane Uk Ltd (CAGE K0382) |
| Parameter | Value |
|---|---|
| NSN | 5330-00-435-2737 |
| Primary Part Number | 670008 |
| Item Name | Seal,piston |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | John Crane Uk Ltd |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 623PC24 | Twiflex Ltd (GBR) |
| 30835PC670008 | Twiflex Ltd (GBR) |
| 6000262 | Twiflex Ltd (GBR) |
| 670008 PRIMARY | John Crane Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 670008 | 5/9 Secondary reference Twiflex Ltd |
| 623PC24 | 5/9 Secondary reference Twiflex Ltd |
| 30835PC670008 | 5/9 Secondary reference Twiflex Ltd |
| 670008 | 5/9 Secondary reference Twiflex Ltd |
| 6000262 | 5/9 Secondary reference Twiflex Ltd |
NSN 5330-00-435-2737 is a Seal,piston, manufactured by John Crane Uk Ltd, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-435-2737 has 4 manufacturer part numbers on file: 623PC24 (Twiflex Ltd), 30835PC670008 (Twiflex Ltd), 6000262 (Twiflex Ltd), 670008 (John Crane Uk Ltd).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-412-5218. Verify interchangeability with system specifications before substitution.
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.