The Washer,spring Tension, cataloged under National Stock Number 5310-00-876-5396, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-876-5396 |
| Primary Part Number | R12 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy |
| Status | ACTIVE |
| Outside Diameter | 1.593 INCHES NOMINAL IN |
| Material Thickness | 0.018 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.239 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| R12 PRIMARY | Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy (USA) |
| APS21-102 | K&l Microwave Llc (USA) |
| Reference | Meaning |
|---|---|
| W1593-018 | 5/9 Secondary reference U.S. Government activity |
| APS21-102 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-876-5396 is a Washer,spring Tension, manufactured by Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-876-5396 has 2 manufacturer part numbers on file: R12 (Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy), APS21-102 (K&l Microwave Llc).
Key specifications for R12: Overall Height: 0.110 INCHES NOMINAL IN; Outside Diameter: 1.593 INCHES NOMINAL IN; Material Thickness: 0.018 INCHES NOMINAL IN; Material: STEEL OVERALL. 4 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.
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.