The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-666-5654, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
Nut,plain,hexagon
FSC / FSG
5310 — Nuts and Washers (FSG 53)
Technical Specifications
Parameter
Value
NSN
5310-01-666-5654
Item Name
Nut,plain,hexagon
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)
Criticality Code
X
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-01-666-5862102778-0011POSSIBLE MATCH
BRACKET,MOUNTING
Possible match (shared part number)Marotta Controls Inc
5305-01-666-5919111113-1001POSSIBLE MATCH
SETSCREW
Possible match (shared part number)Marotta Controls Inc
5360-01-666-6008104333-0629POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
Possible match (shared part number)Marotta Controls Inc
4820-01-666-6188104366-0061POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Marotta Controls Inc
5945-01-666-6195102800-0042POSSIBLE MATCH
PLUNGER,SOLENOID
Possible match (shared part number)Marotta Controls Inc
4820-01-666-6198237907-0004POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Marotta Controls Inc
5310-01-666-7156MV276G-000-8 ITEM 34POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)Marotta Controls Inc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
104167-0022
3/2Design control — primary reference
U.S. Government activity
MV276G-000-8
D/9Drawing number reference only
U.S. Government activity
MV276G-000-8 ITEM 45
5/9Secondary reference
U.S. Government activity
Related Parts
5340-01-666-5862POSSIBLE MATCH
BRACKET,MOUNTING
102778-0011
5305-01-666-5919POSSIBLE MATCH
SETSCREW
111113-1001
5360-01-666-6008POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
104333-0629
4820-01-666-6188POSSIBLE MATCH
STEM,FLUID VALVE
104366-0061
5945-01-666-6195POSSIBLE MATCH
PLUNGER,SOLENOID
102800-0042
4820-01-666-6198POSSIBLE MATCH
DISK,VALVE
237907-0004
5310-01-666-7156POSSIBLE MATCH
WASHER,FLAT
MV276G-000-8 ITEM 34
Frequently Asked Questions
What is NSN 5310-01-666-5654?
NSN 5310-01-666-5654 is a Nut,plain,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
What NSN replaces 5310-01-666-5654?
7 possible matches (shared part number, not a government interchangeability claim): 5340-01-666-5862, 5305-01-666-5919, 5360-01-666-6008. Verify interchangeability with system specifications before substitution.
Is NSN 5310-01-666-5654 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.