The Packing,preformed, cataloged under National Stock Number 5330-00-682-4673, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-682-4673 |
| Primary Part Number | NP1306 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| NP1306 | Ashcroft Inc Dba Heise (USA) |
| STYLEC995 | John Crane, Inc (USA) |
| 1-1-2-8950BPC18 | Ashcroft Inc Dba Heise (USA) |
| 43420 | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| EN1265PC10 | 5/9 Secondary reference U.S. Government activity |
| 8910B2-726-14 | 5/1 Secondary reference U.S. Government activity |
| 8930B-2-741-742-18-17 | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
| 8910B-2-710PC20 | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
| 8930B-2-745-19 | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
| EN1088PC10 | 5/9 Secondary reference U.S. Government activity |
| 8910B2-750PC11 | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
| 8930F-2-720PC23 | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
| AN1306 | 5/9 Secondary reference U.S. Government activity |
| C995 | 5/1 Secondary reference Crane Co Div Valve Div |
| 8930F2-1533PC19 | 5/1 Secondary reference John Crane, Inc |
| 1-1/8X3/4X3/16,STYLE C-95 | 3/1 Design control — primary reference John Crane, Inc |
| NP1306 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-00-682-4673 is a Packing,preformed, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-682-4673 has 4 manufacturer part numbers on file: NP1306 (Ashcroft Inc Dba Heise), STYLEC995 (John Crane, Inc), 1-1-2-8950BPC18 (Ashcroft Inc Dba Heise), 43420 (Ashcroft Inc Dba Heise).
7 possible matches (shared part number, not a government interchangeability claim): 5330-00-752-8530, 4720-01-042-0680, 5330-01-108-0781. Verify interchangeability with system specifications before substitution.
Key specifications for NP1306: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 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.