The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-145-1960, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-145-1960 |
| Primary Part Number | 803-5959298-OA-072 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Body Outside Diameter | 3.001 INCHES MINIMUM AND 3.002 INCHES MAXIMUM IN |
| Style Designator | IRREGULAR |
| Material Document and Classification | QQ-S-741 FED SPEC SINGLE MATERIAL RESPONSE |
| Body Inside Diameter | 1.250 INCHES NOMINAL IN |
| Outside Chamfer Angle in Deg | 45.0 |
| Casehardening Indicator | NOT CASEHARDENED |
| Lip Thickness | 0.343 INCHES NOMINAL IN |
| Material | STEEL |
| Outside Chamfer Depth | 0.062 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 |
|---|---|
| 803-5959298-OA-072 | Naval Sea Systems Command (USA) |
| 803-5959298-A-072 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 845-4558718 REV | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 845-4558718 ITEM 5 | 3/2 Design control — primary reference U.S. Government activity |
| 2642-343-03 ITEM 5 | 5/2 Secondary reference U.S. Government activity |
| 803-6397426-0A-108 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5340-01-145-1960 is a Retainer,helical Compression Spr, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-145-1960 has 2 manufacturer part numbers on file: 803-5959298-OA-072 (Naval Sea Systems Command), 803-5959298-A-072 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-643-5605. Verify interchangeability with system specifications before substitution.
Key specifications for 803-5959298-OA-072: Overall Height: 1.031 INCHES NOMINAL IN; Body Outside Diameter: 3.001 INCHES MINIMUM AND 3.002 INCHES MAXIMUM IN; Style Designator: IRREGULAR; Material Document and Classification: QQ-S-741 FED SPEC SINGLE MATERIAL RESPONSE. 9 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.