The Washer,key, cataloged under National Stock Number 5310-00-766-4239, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Alinabal Holdings Corporation Div Engineered Products Group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-766-4239 |
| Primary Part Number | 392708 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Alinabal Holdings Corporation Div Engineered Products Group |
| Status | ACTIVE |
| External Straight Key Width | 0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.445 INCHES MINIMUM AND 0.450 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 | F |
| Part Number | Manufacturer |
|---|---|
| 392708 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 392708 | Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring (USA) |
| 392708 PRIMARY | Alinabal Holdings Corporation Div Engineered Products Group (USA) |
| Reference | Meaning |
|---|---|
| 392708 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 392708 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-766-4239 is a Washer,key, manufactured by Alinabal Holdings Corporation Div Engineered Products Group, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-766-4239 has 3 manufacturer part numbers on file: 392708 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 392708 (Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring), 392708 (Alinabal Holdings Corporation Div Engineered Products Group).
1 possible match (shared part number, not a government interchangeability claim): 2990-01-196-2910. Verify interchangeability with system specifications before substitution.
Key specifications for 392708: External Straight Key Width: 0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Material: STEEL OVERALL; Hole Diameter: 0.445 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN. 3 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.