The Washer,lock, cataloged under National Stock Number 5310-01-167-2320, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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.
Catalog Facts
Item Name
Washer,lock
FSC / FSG
5310 — Nuts and Washers (FSG 53)
Technical Specifications
Parameter
Value
NSN
5310-01-167-2320
Item Name
Washer,lock
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-247-856575-1-1-2POSSIBLE MATCH
COUPLING,CLAMP,PIPE
Possible match (shared part number)Victaulic Company of America Inc Dba Victaulic Company of America
5930-01-399-226075112POSSIBLE MATCH
SWITCH,PRESSURE
Possible match (shared part number)Hydra-Electric Company Dba Hydra-Electric Co
4730-01-465-4883705-1 1/2POSSIBLE MATCH
COUPLING,CLAMP,PIPE
Possible match (shared part number)Central Sprinkler Corp
5310-01-664-407875112POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)Fastenal Company Div Bind
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
75112
3/2Design control — primary reference
U.S. Government activity
Related Parts
4730-01-247-8565POSSIBLE MATCH
COUPLING,CLAMP,PIPE
75-1-1-2
5930-01-399-2260POSSIBLE MATCH
SWITCH,PRESSURE
75112
4730-01-465-4883POSSIBLE MATCH
COUPLING,CLAMP,PIPE
705-1 1/2
5310-01-664-4078POSSIBLE MATCH
NUT,PLAIN,HEXAGON
75112
Frequently Asked Questions
What is NSN 5310-01-167-2320?
NSN 5310-01-167-2320 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
What NSN replaces 5310-01-167-2320?
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-247-8565, 5930-01-399-2260, 4730-01-465-4883. Verify interchangeability with system specifications before substitution.
Is NSN 5310-01-167-2320 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.