The Washer,key, cataloged under National Stock Number 5310-00-024-2914, 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 14 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-024-2914 |
| Primary Part Number | 596729 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Alinabal Holdings Corporation Div Engineered Products Group |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.264 INCHES MINIMUM AND 0.274 INCHES MAXIMUM IN |
| Split Key Length | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 0.693 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.446 INCHES MINIMUM AND 0.456 INCHES MAXIMUM IN |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN |
| External Straight Key Width | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| External Key Quantity | 1 |
| External Prebent Key Width | 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 OVERALL |
| Angle Between External Keys | 60.0 DEGREES NOMINAL |
| Hole Diameter | 0.255 INCHES MINIMUM AND 0.260 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 |
|---|---|
| 596729 | Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring (USA) |
| 171752 | Barlow Metal Stamping, Inc. (USA) |
| 171752 | Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring (USA) |
| 596729 PRIMARY | Alinabal Holdings Corporation Div Engineered Products Group (USA) |
| 171752 | Enjet Aero Manchester Llc (USA) |
| 171752 | Alinabal Holdings Corporation Div Engineered Products Group (USA) |
| Reference | Meaning |
|---|---|
| 596729 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 171752 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 596729 | 5/2 Secondary reference U.S. Government activity |
| 171752 | 5/2 Secondary reference U.S. Government activity |
| 171752 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 5310PL0712477 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-00-024-2914 is a Washer,key, manufactured by Alinabal Holdings Corporation Div Engineered Products Group, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-024-2914 has 6 manufacturer part numbers on file: 596729 (Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring), 171752 (Barlow Metal Stamping, Inc.), 171752 (Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring), 596729 (Alinabal Holdings Corporation Div Engineered Products Group), 171752 (Enjet Aero Manchester Llc) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5360-01-166-5768. Verify interchangeability with system specifications before substitution.
Key specifications for 596729: Distance From Centerline to Inside of Prebent Key: 0.264 INCHES MINIMUM AND 0.274 INCHES MAXIMUM IN; Split Key Length: 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; External Prebent Key Length: 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Overall Distance Including Keys: 0.693 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN. 14 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.