The Packing with Retainer, cataloged under National Stock Number 5330-00-735-3221, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-735-3221 |
| Primary Part Number | 7353221 |
| Item Name | Packing with Retainer |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Retainer Inside Diameter | 1.250 INCHES NOMINAL IN |
| Packing Inside Diameter | 1.370 INCHES NOMINAL IN |
| Outside Diameter | 1.504 INCHES NOMINAL IN |
| Packing Ring Cross-Sectional Diameter | 0.178 INCHES NOMINAL IN |
| Material Document and Classification | ASTM D2000 2BG715B1E3Z ASSN STD ALL MATERIAL RESPONSES PACKING |
| Retainer Thickness | 0.030 INCHES NOMINAL IN |
| Material | PLASTIC PHENOLIC RETAINER |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU PACKING |
| Construction | TWO-PIECE |
| 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 |
|---|---|
| 1781748PC5 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 7353221 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 178748PC5 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 6068 | Greene Tweed & Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 6068 | 5/9 Secondary reference Palmetto Inc |
NSN 5330-00-735-3221 is a Packing with Retainer, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-735-3221 has 4 manufacturer part numbers on file: 1781748PC5 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 7353221 (U S Army Tank Automotive Command Amsta-Im-Mm), 178748PC5 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 6068 (Greene Tweed & Co Inc).
5 possible matches (shared part number, not a government interchangeability claim): 2590-01-228-0313, 5140-01-272-1227, 5120-01-400-0236. Verify interchangeability with system specifications before substitution.
Key specifications for 7353221: Retainer Inside Diameter: 1.250 INCHES NOMINAL IN; Packing Inside Diameter: 1.370 INCHES NOMINAL IN; Outside Diameter: 1.504 INCHES NOMINAL IN; Packing Ring Cross-Sectional Diameter: 0.178 INCHES NOMINAL IN. 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.