The Washer,flat, cataloged under National Stock Number 5310-00-171-6984, 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 - Torrance. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-171-6984 |
| Primary Part Number | 91592 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | ASBESTOS OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.375 INCHES NOMINAL IN |
| Thickness | 0.125 INCHES NOMINAL 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 |
|---|---|
| 91592 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 91592 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 5310-00-171-6984 is a Washer,flat, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-171-6984 has 1 manufacturer part number on file: 91592 (Honeywell International Inc. Div Aerospace - Torrance).
4 possible matches (shared part number, not a government interchangeability claim): 5950-00-232-4883, 5120-00-329-7057, 5365-01-161-2190. Verify interchangeability with system specifications before substitution.
Key specifications for 91592: Overall Diameter: 0.625 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: ASBESTOS OVERALL. 7 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.