PartsTable TECHNICAL DATA SHEET
NSN 5310-01-603-8682Government record, cited

Nut, Self-Locking, Hexagon5310-01-603-8682

NSN 5310-01-603-8682 · NIIN 016038682 · Part number H4503
Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 7J998
Government record, cited
NSN 5310-01-603-8682 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-603-8682. Manufacturer of record part number: H4503.
Also searched as  5310-01-603-8682 · 5310016038682 · NIIN 016038682 · 01-603-8682 · FSC 5310 Nuts and Washers · CAGE 7J998 · H4503 · 92092A035
Nearby stock numbers  ·
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Width Across Flats: 0.9375 INCHES NOMINAL IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Temp Rating: 250.0 FAHRENHEIT MAXIMUM DEGF
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.625 INCHES IN
  • Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
  • Nut Height: 0.750 INCHES NOMINAL IN
Identification
  • NSN: 5310-01-603-8682
  • NIIN: 016038682
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: H4503
  • Manufacturer: Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-603-8682, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division. Government technical data includes 13 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
NSN5310-01-603-8682
Primary Part NumberH4503
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerKratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division
StatusACTIVE
Width Across Flats0.9375 INCHES NOMINAL IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Temp Rating250.0 FAHRENHEIT MAXIMUM DEGF
Thread DirectionRIGHT-HAND
Nominal Thread Size0.625 INCHES IN
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Nut Height0.750 INCHES NOMINAL IN
Nut StyleHEXAGON
Thread Class2B
Thread Quantity Per Inch11
MaterialPLASTIC POLYAMIDE NYLON LOCKING INSERT
MaterialCOPPER ALLOY NUT
Bearing Surface TypeFLAT
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
92092A035 Mcmaster-Carr Supply Co (USA)
H4503 PRIMARY Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division (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 5310-01-603-8682?

NSN 5310-01-603-8682 is a Nut,self-Locking,hexagon, manufactured by Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-603-8682?

NSN 5310-01-603-8682 has 2 manufacturer part numbers on file: 92092A035 (Mcmaster-Carr Supply Co), H4503 (Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division).

What are the specifications of H4503?

Key specifications for H4503: Width Across Flats: 0.9375 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 250.0 FAHRENHEIT MAXIMUM DEGF; Thread Direction: RIGHT-HAND. 13 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-603-8682 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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