The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-00-905-4453, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Cummins Inc.. 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: TE.
| Parameter | Value |
|---|---|
| NSN | 5340-00-905-4453 |
| Primary Part Number | 163061 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Flange Diameter | 1.470 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN |
| FSC Application Data | VALVES,DIESEL ENGINES |
| Material Hardness Rating | 30.0 ROCKWELL B MINIMUM AND 65.0 ROCKWELL B MAXIMUM |
| Flange Thickness | 0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN |
| Body Outside Diameter | 1.020 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN |
| Style Designator | PARALLEL |
| Material Document and Classification | 30.004, CUMMINS ENGINE CO INC MFR REF SINGLE MATERIAL RESPONSE |
| Body Inside Diameter | 0.964 INCHES MINIMUM AND 0.966 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Lip Thickness | 0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN |
| Material | STEEL |
| End Hole Diameter | 0.753 INCHES MINIMUM AND 0.758 INCHES MAXIMUM 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 | TE |
| Part Number | Manufacturer |
|---|---|
| 163061 PRIMARY | Cummins Inc. (USA) |
NSN 5340-00-905-4453 is a Retainer,helical Compression Spr, manufactured by Cummins Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-905-4453 has 1 manufacturer part number on file: 163061 (Cummins Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 2920-01-371-1392, 2920-01-575-5579. Verify interchangeability with system specifications before substitution.
Key specifications for 163061: Flange Diameter: 1.470 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN; Overall Height: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; FSC Application Data: VALVES,DIESEL ENGINES; Material Hardness Rating: 30.0 ROCKWELL B MINIMUM AND 65.0 ROCKWELL B MAXIMUM. 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.