The Washer,key, cataloged under National Stock Number 5310-00-032-9998, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-032-9998 |
| Primary Part Number | 185541 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| Status | ACTIVE |
| Angle Between First and Second Key | 90.0 DEGREES NOMINAL |
| Surface Finish | 100.0 MICROINCHES ALL SURFACES |
| Angle Between Internal Key and First Offset Key | 90.0 DEGREES NOMINAL |
| Internal Prebent Key Width | 0.087 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Material Thickness | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| External Straight Key Width | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| External Key Quantity | 2 |
| Surface Treatment | OXIDE FILM OVERALL |
| Material | STEEL COMP 302 OVERALL |
| Hole Diameter | 0.510 INCHES MINIMUM AND 0.520 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 |
|---|---|
| 185541 PRIMARY | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| Reference | Meaning |
|---|---|
| 185541 | 5/9 Secondary reference Associated Aerospace Activities Inc |
NSN 5310-00-032-9998 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 5310-00-032-9998 has 1 manufacturer part number on file: 185541 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-154-0122. Verify interchangeability with system specifications before substitution.
Key specifications for 185541: Angle Between First and Second Key: 90.0 DEGREES NOMINAL; Surface Finish: 100.0 MICROINCHES ALL SURFACES; Angle Between Internal Key and First Offset Key: 90.0 DEGREES NOMINAL; Internal Prebent Key Width: 0.087 INCHES MINIMUM AND 0.091 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.