The Retainer,packing, cataloged under National Stock Number 5330-01-206-7368, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Flowserve Inc. Government technical data includes 9 specifications, 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. 3 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 | 5330-01-206-7368 |
| Primary Part Number | 11971 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.410 INCHES NOMINAL IN |
| Attachment Feature Quantity | 2 |
| Cross-Sectional Height | 1.000 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Attachment Feature Circle Diameter | 0.244 INCHES NOMINAL SINGLE CIRCLE IN |
| Peripheral Diameter | 0.921 INCHES NOMINAL IN |
| Center Hole Diameter | 0.572 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN |
| Material | STEEL COMP 316 RETAINER |
| Attachment Method | ROUND HOLE |
| 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 |
|---|---|
| 11971 PRIMARY | Flowserve Inc (USA) |
NSN 5330-01-206-7368 is a Retainer,packing, manufactured by Flowserve Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-206-7368 has 1 manufacturer part number on file: 11971 (Flowserve Inc).
3 possible matches (shared part number, not a government interchangeability claim): 2940-01-210-7283, 5975-01-343-6072, 5998-01-492-8240. Verify interchangeability with system specifications before substitution.
Key specifications for 11971: Attachment Hole Diameter: 0.410 INCHES NOMINAL IN; Attachment Feature Quantity: 2; Cross-Sectional Height: 1.000 INCHES NOMINAL IN; Cross-Sectional Shape Style: SQUARE/RECTANGULAR. 9 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.