NSN 5310-01-651-5378 · NIIN 016515378 · Part number 3975791010
Oshkosh Defense Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 75Q65
Government record, cited
NSN 5310-01-651-5378 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-651-5378. Manufacturer of record part number: 3975791010.
Also searched as5310-01-651-5378 ·
5310016515378 ·
NIIN 016515378 ·
01-651-5378 ·
FSC 5310 Nuts and Washers · CAGE 75Q65 · 3975791010 · 3975791
Width Across Flats: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Thread Series: UNIFIED NATIONAL COARSE (UNC)
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.500 INCHES IN
Nut Height: 0.448 INCHES NOMINAL IN
Inside Width Across Flats: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Nut Style: HEXAGON
Identification
NSN: 5310-01-651-5378
NIIN: 016515378
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 3975791010
Manufacturer: Oshkosh Defense Llc
General Description
The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-651-5378, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-651-5378
Primary Part Number
3975791010
Item Name
Nut,plain,hexagon
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Oshkosh Defense Llc
Status
ACTIVE
Width Across Flats
0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Thread Series
UNIFIED NATIONAL COARSE (UNC)
Thread Direction
RIGHT-HAND
Nominal Thread Size
0.500 INCHES IN
Nut Height
0.448 INCHES NOMINAL IN
Inside Width Across Flats
0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Nut Style
HEXAGON
Thread Class
6H
Thread Quantity Per Inch
20
Material
STEEL OVERALL
Bearing Surface Type
FLAT
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 Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5310-01-651-538012602946-012POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5310-01-651-714412602946-009POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5310-01-657-43213975791014POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)Oshkosh Defense Llc
5310-01-657-43223975791002POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)Oshkosh Defense Llc
5310-01-658-86023975791016POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)Oshkosh Defense Llc
5310-01-659-63473975791013POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)Oshkosh Defense Llc
5310-01-663-25823975791015POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)Oshkosh Defense Llc
5310-01-676-526512602946-005POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
NSN 5310-01-651-5378 is a Nut,plain,hexagon, manufactured by Oshkosh Defense Llc, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-651-5378?
NSN 5310-01-651-5378 has 1 manufacturer part number on file: 3975791010 (Oshkosh Defense Llc).
What NSN replaces 5310-01-651-5378?
8 possible matches (shared part number, not a government interchangeability claim): 5310-01-651-5380, 5310-01-651-7144, 5310-01-657-4321. Verify interchangeability with system specifications before substitution.
What are the specifications of 3975791010?
Key specifications for 3975791010: Width Across Flats: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.500 INCHES IN. 11 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-651-5378 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.