The Washer,key, cataloged under National Stock Number 5310-00-332-6672, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc Div Aerospace-South Bend (bendix Dr). Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5310-00-332-6672 |
| Primary Part Number | 187561 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| Status | ACTIVE |
| Surface Finish | 100.0 MICROINCHES ALL SURFACES |
| Surface Treatment Document and Classification | ES-091,FSCM 06848 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Centerline to Inside of Prebent Key | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Style Designator | 90 DEGREE LOCKING KEY |
| Material Document and Classification | AMS 5504 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5516 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.468 INCHES NOMINAL IN |
| External Tapered Key Width | 0.375 INCHES NOMINAL IN |
| Material Thickness | 0.012 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN |
| External Prebent Key Angle | 45.0 DEGREES NOMINAL |
| Surface Treatment | PASSIVATE OVERALL |
| External Prebent Key Width | 0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Material | STEEL COMP 410 OR STEEL COMP 302 OVERALL |
| Angle Between External Keys | 60.0 DEGREES NOMINAL |
| Hole Diameter | 0.200 INCHES MINIMUM AND 0.210 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 |
|---|---|
| 187561 PRIMARY | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
NSN 5310-00-332-6672 is a Washer,key, manufactured by Honeywell International Inc Div Aerospace-South Bend (bendix Dr), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-332-6672 has 1 manufacturer part number on file: 187561 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)).
1 possible match (shared part number, not a government interchangeability claim): 2840-00-396-4649. Verify interchangeability with system specifications before substitution.
Key specifications for 187561: Surface Finish: 100.0 MICROINCHES ALL SURFACES; Surface Treatment Document and Classification: ES-091,FSCM 06848 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Distance From Centerline to Inside of Prebent Key: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; External Prebent Key Length: 0.083 INCHES MINIMUM AND 0.103 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.