The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-706-2893, 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 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-706-2893 |
| Primary Part Number | 326634 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| Design Type | SOLID |
| Material Document and Classification | QQ-A-268-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Counterbore Diameter | 0.3250 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 2024 |
| 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 |
|---|---|
| 326634 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 326634 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| 326634 | 5/9 Secondary reference Raytheon Company |
NSN 5340-00-706-2893 is a Seat,helical Compression Spring, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-706-2893 has 1 manufacturer part number on file: 326634 (Northrop Grumman Systems Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5955-01-140-6810, 3020-01-164-9329. Verify interchangeability with system specifications before substitution.
Key specifications for 326634: Overall Height: 0.1250 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE; Design Type: SOLID; Material Document and Classification: QQ-A-268-CANCELED FED SPEC SINGLE MATERIAL RESPONSE. 6 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.