The Packing Assembly, cataloged under National Stock Number 5330-00-939-8983, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-939-8983 |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Intermediate Ring Quantity | 3 |
| Outside Diameter | 0.596 INCHES MINIMUM AND 0.606 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | SPECIAL BOTTOM RING |
| Cross-Sectional Shape Style | SPECIAL TOP RING |
| Inside Diameter | 0.406 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN |
| Height | 0.547 INCHES MINIMUM AND 0.647 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE BOTTOM RING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE INTERMEDIATE RING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE TOP RING |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL IN ACCORDANCE WITH 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 | X |
| Reference | Meaning |
|---|---|
| 2620-902PC8 | 3/1 Design control — primary reference The Walworth Company |
| 845-1889587PC8(1/4,3/8IN) | 5/1 Secondary reference U.S. Government activity |
| 845-2110254PC8 | 5/1 Secondary reference U.S. Government activity |
| 2620-902PC8 | 5/9 Secondary reference U.S. Government activity |
| 708387SPCLN | 5/1 Secondary reference The Walworth Company |
| 2620-902PC8(1/4,3/8IN) | 5/1 Secondary reference U.S. Government activity |
| 845-2110254 | 5/1 Secondary reference U.S. Government activity |
| 845-1889587PC8 | 5/1 Secondary reference U.S. Government activity |
NSN 5330-00-939-8983 is a Packing Assembly, classified under FSC 5330, Packing and Gasket Materials. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-178-9685, 5330-01-228-4760. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-00-939-8983: Intermediate Ring Quantity: 3; Outside Diameter: 0.596 INCHES MINIMUM AND 0.606 INCHES MAXIMUM IN; Cross-Sectional Shape Style: SPECIAL BOTTOM RING; Cross-Sectional Shape Style: SPECIAL TOP RING. 10 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.