The Washer,spring Tension, cataloged under National Stock Number 5310-00-960-0877, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-960-0877 |
| Primary Part Number | 439986 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Material Thickness | 0.015 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 OVERALL |
| Hole Diameter | 0.067 INCHES MINIMUM AND 0.077 INCHES MAXIMUM 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 |
|---|---|
| 439986 | Tokyo Judoi Kogyo K.k. (JPN) |
| 439986 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 439986 | 5/9 Secondary reference U.S. Government activity |
| 439986 | 5/9 Secondary reference Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring |
| 439986 | 5/9 Secondary reference Tokyo Judogi Kogyo Co. |
NSN 5310-00-960-0877 is a Washer,spring Tension, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-960-0877 has 2 manufacturer part numbers on file: 439986 (Tokyo Judoi Kogyo K.k.), 439986 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 439986: Overall Height: 0.032 INCHES NOMINAL IN; Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Material Thickness: 0.015 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN. 5 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.