The Retainer,seal, cataloged under National Stock Number 5330-01-471-3536, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics Land Systems Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-471-3536 |
| Primary Part Number | 12371057 |
| Item Name | Retainer,seal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | General Dynamics Land Systems Inc. |
| Status | ACTIVE |
| Body Outside Diameter | 1.510 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A-331 GRADE 4140 THRU 4150 OR 4140H THRU 4150H NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL |
| Seal Seat Diameter | 1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN |
| Mounting Flange Diameter | 2.120 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 12371057 PRIMARY | General Dynamics Land Systems Inc. (USA) |
| Reference | Meaning |
|---|---|
| 12371057 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5330-01-471-3536 is a Retainer,seal, manufactured by General Dynamics Land Systems Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-471-3536 has 1 manufacturer part number on file: 12371057 (General Dynamics Land Systems Inc.).
Key specifications for 12371057: Overall Height: 0.310 INCHES NOMINAL IN; Body Outside Diameter: 1.510 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN; Material Document and Classification: ASTM A-331 GRADE 4140 THRU 4150 OR 4140H THRU 4150H NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL; Seal Seat Diameter: 1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN. 5 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.