The Retainer,packing, cataloged under National Stock Number 5330-01-054-7122, 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 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-054-7122 |
| Primary Part Number | 12266636 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.086 INCHES NOMINAL IN |
| Attachment Feature Quantity | 4 |
| Cross-Sectional Height | 0.320 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SPECIAL |
| Cut Type | RECTANGULAR OVERALL |
| Angle | 35.0 DEGREES MINIMUM AND 45.0 DEGREES MAXIMUM |
| Peripheral Diameter | 3.455 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Center Hole Diameter | 2.750 INCHES NOMINAL IN |
| Material | STEEL COMP 303 OVERALL |
| 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 |
|---|---|
| 12266636 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12266636 | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
| 6558-261 | 5/9 Secondary reference Recon/optical, Inc. |
NSN 5330-01-054-7122 is a Retainer,packing, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-054-7122 has 1 manufacturer part number on file: 12266636 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5905-01-181-4583. Verify interchangeability with system specifications before substitution.
Key specifications for 12266636: Attachment Hole Diameter: 0.086 INCHES NOMINAL IN; Attachment Feature Quantity: 4; Cross-Sectional Height: 0.320 INCHES NOMINAL IN; Cross-Sectional Shape Style: SPECIAL. 11 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.