The Washer,spring Tension, cataloged under National Stock Number 5310-01-079-2979, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-079-2979 |
| Primary Part Number | 12278970 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Style Designator | SPRING TENSION |
| Material Document and Classification | QQ-S-766,3/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 3.125 INCHES NOMINAL3.125 INCHES NOMINAL IN |
| Material Thickness | 0.025 INCHES NOMINAL0.025 INCHES NOMINAL IN |
| Material | STEEL COMP 301 OVERALL |
| Hole Diameter | 2.815 INCHES NOMINAL2.815 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12278970 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 5310-01-079-2979 is a Washer,spring Tension, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-079-2979 has 1 manufacturer part number on file: 12278970 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 12278970: Overall Height: 0.162 INCHES NOMINAL0.162 INCHES NOMINAL IN; Style Designator: SPRING TENSION; Material Document and Classification: QQ-S-766,3/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 3.125 INCHES NOMINAL3.125 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5310-01-079-2979 has DEMIL Code Q. 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.