PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NASM21044-N08Nut,self-Locking,hexagon

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-647-3099 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-647-3099 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-647-3099. Primary manufacturer part number: NASM21044-N08.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nut Height: 0.091 INCHES NOMINAL IN
  • Thread Series: UNJC
  • Nominal Thread Size: 0.164 INCHES IN
  • Bearing Surface Type: CHAMFERED
  • Thread Quantity Per Inch: 32
  • Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Nylon Locking Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-647-3099, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-647-3099
Primary Part NumberNASM21044-N08
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Nut Height0.091 INCHES NOMINAL IN
Thread SeriesUNJC
Nominal Thread Size0.164 INCHES IN
Bearing Surface TypeCHAMFERED
Thread Quantity Per Inch32
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Thread DirectionRIGHT-HAND
Thread Class3B
Width Across Flats0.336 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
Nut StyleHEXAGON
MaterialPLASTIC NYLON LOCKING INSERT
Surface TreatmentPASSIVATE OVERALL EXCEPT INSERT
MaterialSTEEL CORROSION RESISTING OVERALL EXCEPT INSERT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-811-3494MS21044N08 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
NASM21044-N08 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS21044-N08 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-811-3494INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS21044N08

Frequently Asked Questions

What is NSN 5310-01-647-3099?

NSN 5310-01-647-3099 is a Nut,self-Locking,hexagon, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-647-3099?

NSN 5310-01-647-3099 has 2 cross-referenced part numbers: NASM21044-N08 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS21044-N08 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-01-647-3099?

There is 1 known substitute for 5310-01-647-3099: 5310-00-811-3494. Verify interchangeability with system specifications before substitution.

What are the specifications of NASM21044-N08?

Key specifications for NASM21044-N08: Nut Height: 0.091 INCHES NOMINAL IN; Thread Series: UNJC; Nominal Thread Size: 0.164 INCHES IN; Bearing Surface Type: CHAMFERED. 13 total characteristics are documented in the Federal Logistics Information System.

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