The Packing Ring Set, cataloged under National Stock Number 5330-01-022-3953, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 1 specification, 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 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 | 5330-01-022-3953 |
| Primary Part Number | 3586-4-87 |
| Item Name | Packing Ring Set |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| General Characteristics Item Description | PLASTIC ASBESTOS AND NICKEL-CHROMIUM-IRON ALLOY MIL-P-17303 CLASS 2 TYPE E SYMBOL 1111,SET CONSISTS OF 6 RINGS,0.813 IN.,ID,1.250 IN. OD,0.250 IN. THK IN |
| 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 |
|---|---|
| 3586-4-87 PRIMARY | Velan Valve Corp. (USA) |
NSN 5330-01-022-3953 is a Packing Ring Set, manufactured by Velan Valve Corp., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-022-3953 has 1 manufacturer part number on file: 3586-4-87 (Velan Valve Corp.).
1 possible match (shared part number, not a government interchangeability claim): 1560-01-162-3238. Verify interchangeability with system specifications before substitution.
Key specifications for 3586-4-87: General Characteristics Item Description: PLASTIC ASBESTOS AND NICKEL-CHROMIUM-IRON ALLOY MIL-P-17303 CLASS 2 TYPE E SYMBOL 1111,SET CONSISTS OF 6 RINGS,0.813 IN.,ID,1.250 IN. OD,0.250 IN. THK IN. 1 specification is 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.