The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-00-970-9224, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-970-9224 |
| Primary Part Number | 128HM10082-1 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flange Diameter | 1.375 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| Flange Thickness | 0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Body Outside Diameter | 1.125 INCHES NOMINAL IN |
| Style Designator | PARALLEL |
| Material Document and Classification | QQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.044 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN |
| Body Inside Diameter | 1.000 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Lip Thickness | 0.063 INCHES NOMINAL IN |
| Bolt Circle Diameter | 1.465 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 7075 |
| End Hole Diameter | 0.528 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 128HM10082-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128HM10082 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 128HM10082-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5340-00-970-9224 is a Retainer,helical Compression Spr, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-970-9224 has 1 manufacturer part number on file: 128HM10082-1 (Northrop Grumman Systems Corporation).
Key specifications for 128HM10082-1: Flange Diameter: 1.375 INCHES NOMINAL IN; Overall Height: 0.823 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE; Flange Thickness: 0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN. 14 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.
NSN 5340-00-970-9224 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.