PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1137-624Nut,self-Locking,hexagon

Naval Air Warfare Center Aircraft Division Joint Base Jbmdl · NSN 5310-00-275-2090 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-275-2090 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-275-2090. Primary manufacturer part number: 1137-624.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Class: 3B
  • Nut Height: 0.453 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
  • Bearing Surface Type: FLAT
  • Nominal Thread Size: 0.375 INCHES IN
  • Width Across Flats: 0.553 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 24
  • Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Locking Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-275-2090, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Air Warfare Center Aircraft Division Joint Base Jbmdl. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-275-2090
Primary Part Number1137-624
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Air Warfare Center Aircraft Division Joint Base Jbmdl
StatusCANCELLED
Thread Class3B
Nut Height0.453 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
Bearing Surface TypeFLAT
Nominal Thread Size0.375 INCHES IN
Width Across Flats0.553 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
Thread Quantity Per Inch24
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Thread SeriesUNF
MaterialSTEEL LOCKING INSERT
Nut StyleHEXAGON
Surface TreatmentCADMIUM OR ZINC OVERALL
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5310-00-950-0039MS21044N6 INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
1137-624 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
MS20365-624A Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AN365-624A Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5310-00-950-0039INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS21044N6

Frequently Asked Questions

What is NSN 5310-00-275-2090?

NSN 5310-00-275-2090 is a Nut,self-Locking,hexagon, manufactured by Naval Air Warfare Center Aircraft Division Joint Base Jbmdl, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-275-2090?

NSN 5310-00-275-2090 has 3 cross-referenced part numbers: 1137-624 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl), MS20365-624A (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), AN365-624A (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5310-00-275-2090?

There is 1 known substitute for 5310-00-275-2090: 5310-00-950-0039. Verify interchangeability with system specifications before substitution.

What are the specifications of 1137-624?

Key specifications for 1137-624: Thread Class: 3B; Nut Height: 0.453 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN; Bearing Surface Type: FLAT; Nominal Thread Size: 0.375 INCHES IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-275-2090 still in active supply?

NSN 5310-00-275-2090 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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