The Packing,preformed, cataloged under National Stock Number 5330-01-222-0837, 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 8 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. 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 | 5330-01-222-0837 |
| Primary Part Number | 12278617 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Cross-Sectional Height | 0.312 INCHES NOMINAL IN |
| Hardness Rating | 50.0 SHORE DUROMETER A NOMINAL OVERALL |
| Material Document and Classification | MIL-R-6855 TYPE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Peripheral Diameter | 23.250 INCHES NOMINAL IN |
| Center Hole Diameter | 22.374 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| Joint Type | SCARF-PERIPHERAL PACKING |
| 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 |
|---|---|
| 12278617 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5330-01-222-0837 is a Packing,preformed, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-222-0837 has 1 manufacturer part number on file: 12278617 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-345-7010. Verify interchangeability with system specifications before substitution.
Key specifications for 12278617: Cross-Sectional Height: 0.312 INCHES NOMINAL IN; Hardness Rating: 50.0 SHORE DUROMETER A NOMINAL OVERALL; Material Document and Classification: MIL-R-6855 TYPE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SQUARE/RECTANGULAR. 8 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.