The Washer,key, cataloged under National Stock Number 5310-00-150-2477, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Paradigm Manchester Inc. Dba Pursuit Aerospace. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-150-2477 |
| Primary Part Number | 670916 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Paradigm Manchester Inc. Dba Pursuit Aerospace |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.465 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN |
| Split Key Length | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.485 INCHES MINIMUM AND 0.493 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 0.850 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.440 INCHES NOMINAL IN |
| External Tapered Key Width | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| External Key Quantity | 3 |
| External Prebent Key Angle | 10.0 DEGREES MINIMUM AND 20.0 DEGREES MAXIMUM |
| External Prebent Key Width | 0.440 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Angle Between External Keys | 58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 670916 | Laurel Sheet Metal Products, Inc (USA) |
| 670916 | Hanovia Specialty Lighting Llc (USA) |
| 670916 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 670916 PRIMARY | Paradigm Manchester Inc. Dba Pursuit Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 670916 | 5/9 Secondary reference Gould E a and Co |
| 670916 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 670916 | 5/9 Secondary reference Dynamic Gunver Technologies Llc |
NSN 5310-00-150-2477 is a Washer,key, manufactured by Paradigm Manchester Inc. Dba Pursuit Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-150-2477 has 4 manufacturer part numbers on file: 670916 (Laurel Sheet Metal Products, Inc), 670916 (Hanovia Specialty Lighting Llc), 670916 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 670916 (Paradigm Manchester Inc. Dba Pursuit Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-205-8233. Verify interchangeability with system specifications before substitution.
Key specifications for 670916: Distance From Centerline to Inside of Prebent Key: 0.465 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN; Split Key Length: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; External Prebent Key Length: 0.485 INCHES MINIMUM AND 0.493 INCHES MAXIMUM IN; Overall Distance Including Keys: 0.850 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN. 15 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.