The Washer,flat, cataloged under National Stock Number 5310-01-286-8373, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Washer,flat
FSC / FSG
5310 — Nuts and Washers (FSG 53)
Technical Specifications
Parameter
Value
NSN
5310-01-286-8373
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5365-01-481-802943430POSSIBLE MATCH
BUSHING,NONMETALLIC
Possible match (shared part number)R. M. Young Company Llc
7025-01-548-02324343-0POSSIBLE MATCH
INTERFACE UNIT,AUTOMATIC DATA PR
Possible match (shared part number)Omnitron Systems Technology, Inc. Dba Omnitron Systems Technology Inc
5340-01-684-299343430POSSIBLE MATCH
BRACKET,MOUNTING
Possible match (shared part number)Power Test, Llc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
12-43430
3/2Design control — primary reference
U.S. Government activity
43430
5/9Secondary reference
Mercury Marine Div of Brunswick Corp
Related Parts
5365-01-481-8029POSSIBLE MATCH
BUSHING,NONMETALLIC
43430
7025-01-548-0232POSSIBLE MATCH
INTERFACE UNIT,AUTOMATIC DATA PR
4343-0
5340-01-684-2993POSSIBLE MATCH
BRACKET,MOUNTING
43430
Frequently Asked Questions
What is NSN 5310-01-286-8373?
NSN 5310-01-286-8373 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
What NSN replaces 5310-01-286-8373?
3 possible matches (shared part number, not a government interchangeability claim): 5365-01-481-8029, 7025-01-548-0232, 5340-01-684-2993. Verify interchangeability with system specifications before substitution.
Is NSN 5310-01-286-8373 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.