PartsTable TECHNICAL DATA SHEET
NSN 5310-01-668-3781Government record, cited

Nut, Plain, Castellated, Hexagon5310-01-668-3781

NSN 5310-01-668-3781 · NIIN 016683781 · Part number 01921799
Grove U.s. Llc Dba Grove Us Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 12361
Government record, cited
NSN 5310-01-668-3781 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-668-3781. Manufacturer of record part number: 01921799.
Also searched as  5310-01-668-3781 · 5310016683781 · NIIN 016683781 · 01-668-3781 · FSC 5310 Nuts and Washers · CAGE 12361 · 01921799 · 11505628
Nearby stock numbers  ·
Features
  • Nut,plain,castellated,hexagon — FSC 5310
  • Width Across Flats: 36.0 MILLIMETERS NOMINAL MM
  • Thread Series: M
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 1.5 MILLIMETERS MM
  • Nut Height: 15.0 MILLIMETERS NOMINAL MM
  • Surface Treatment: ZINC OVERALL
  • Nut Style: CASTELLATED, HEXAGON
Identification
  • NSN: 5310-01-668-3781
  • NIIN: 016683781
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 01921799
  • Manufacturer: Grove U.s. Llc Dba Grove Us Llc
General Description

The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-01-668-3781, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Grove U.s. Llc Dba Grove Us Llc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-668-3781
Primary Part Number01921799
Item NameNut,plain,castellated,hexagon
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerGrove U.s. Llc Dba Grove Us Llc
StatusACTIVE
Width Across Flats36.0 MILLIMETERS NOMINAL MM
Thread SeriesM
Thread DirectionRIGHT-HAND
Nominal Thread Size1.5 MILLIMETERS MM
Nut Height15.0 MILLIMETERS NOMINAL MM
Surface TreatmentZINC OVERALL
Nut StyleCASTELLATED, HEXAGON
Hole Nominal Thread Diameter24.0 MILLIMETERS MM
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
01921799 PRIMARY Grove U.s. Llc Dba Grove Us Llc (USA)
11505628 Fastenal Company Dba Fastenal Co (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-01-668-3781?

NSN 5310-01-668-3781 is a Nut,plain,castellated,hexagon, manufactured by Grove U.s. Llc Dba Grove Us Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-668-3781?

NSN 5310-01-668-3781 has 2 manufacturer part numbers on file: 01921799 (Grove U.s. Llc Dba Grove Us Llc), 11505628 (Fastenal Company Dba Fastenal Co).

What are the specifications of 01921799?

Key specifications for 01921799: Width Across Flats: 36.0 MILLIMETERS NOMINAL MM; Thread Series: M; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.5 MILLIMETERS MM. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-668-3781 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.
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