The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-075-7913, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-075-7913 |
| Primary Part Number | 12277511 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Flange Diameter | 1.380 INCHES NOMINAL IN |
| Flange Thickness | 0.250 INCHES NOMINAL IN |
| Body Outside Diameter | 0.775 INCHES NOMINAL IN |
| Style Designator | PARALLEL |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.220 INCHES NOMINAL IN |
| Body Inside Diameter | 0.672 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Lip Thickness | 0.105 INCHES NOMINAL IN |
| Bolt Circle Diameter | 1.000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 |
| End Hole Diameter | 0.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 12277511 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12277511 | 3/9 Design control — primary reference Drs Sustainment Systems, Inc. |
NSN 5340-01-075-7913 is a Retainer,helical Compression Spr, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-075-7913 has 1 manufacturer part number on file: 12277511 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12277511: Flange Diameter: 1.380 INCHES NOMINAL IN; Overall Height: 1.285 INCHES NOMINAL IN; Flange Thickness: 0.250 INCHES NOMINAL IN; Body Outside Diameter: 0.775 INCHES NOMINAL IN. 12 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.