PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NASM21042-08Nut,self-Locking,extended Washer

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-807-1473 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-807-1473 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-807-1473. Primary manufacturer part number: NASM21042-08.
Features
  • Nut,self-Locking,extended Washer — FSC 5310
  • Nut Style: HEXAGON
  • Nominal Thread Size: 0.164 INCHES IN
  • Material: STEEL OVERALL
  • Thread Direction: RIGHT-HAND
  • Hardness Rating: 49.0 ROCKWELL C MAXIMUM
  • Width Across Flats: 0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 32
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-807-1473, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 28 commercial cross-references from 22 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-807-1473
Primary Part NumberNASM21042-08
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Nut StyleHEXAGON
Nominal Thread Size0.164 INCHES IN
MaterialSTEEL OVERALL
Thread DirectionRIGHT-HAND
Hardness Rating49.0 ROCKWELL C MAXIMUM
Width Across Flats0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Class3B
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Washer Thickness0.015 INCHES MINIMUM IN
Surface TreatmentCADMIUM OVERALL
Temp Rating450.0 FAHRENHEIT NOMINAL DEGF
Washer Outside Diameter0.290 INCHES MAXIMUM IN
Thread SeriesUNJC
LubricationDRY FILM LUBRICANT
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
1730-00-771-0814134GT1011 INTERCHANGEABLE
Shield,aircraft Ground Servicing
Northrop Grumman Systems Corporation
5310-01-628-4949MS21042-4 INTERCHANGEABLE
Nut,self-Locking,extended Washer
Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army
Cross-Reference Index
Part NumberManufacturer
10373387 Nimikkeistokeskus Ncb Finland (FIN)
984019 Safran Martin-Baker France (FRA)
MN16PJ08 Satair A/s (DNK)
MS21042L08 Leonardo Spa Helicopters Division - Production Site (ITA)
MS21042L08 Aertekno S.r.l. (ITA)
P26040 Martin-Baker Aircraft Company Limited (GBR)
5310008071473 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
403335 FIND 6 Ge Aviation Systems Llc (USA)
FN12MLM-82 Sps Technologies, Llc Dba PB Fasteners (USA)
400555-02 Goodrich Lighting Systems Gmbh & Co Kg Div Utas (DEU)
9NM400555-02 Goodrich Lighting Systems Gmbh & Co Kg Div Utas (DEU)
RM52LH3324-82 Harvard Industries Inc (USA)
MS21042L08 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MN16PJ08 Fairchild Fasteners Europe - Vsd Gmbh (DEU)
NASM21042 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS21042L08 Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA)
NASM21042-08 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5310PL1686599 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS21042L08 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Z00.N5415371175 Daher Aerospace - Ex Socata (FRA)
Related Parts
1730-00-771-0814INTERCHANGEABLE
SHIELD,AIRCRAFT GROUND SERVICING
134GT1011
5310-01-628-4949INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
MS21042-4

Frequently Asked Questions

What is NSN 5310-00-807-1473?

NSN 5310-00-807-1473 is a Nut,self-Locking,extended Washer, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-807-1473?

NSN 5310-00-807-1473 has 28 cross-referenced part numbers: 10373387 (Nimikkeistokeskus Ncb Finland), 984019 (Safran Martin-Baker France), MN16PJ08 (Satair A/s), MS21042L08 (Leonardo Spa Helicopters Division - Production Site), MS21042L08 (Aertekno S.r.l.) and 23 more.

What NSN replaces 5310-00-807-1473?

There are 2 known substitutes for 5310-00-807-1473: 1730-00-771-0814, 5310-01-628-4949. Verify interchangeability with system specifications before substitution.

What are the specifications of NASM21042-08?

Key specifications for NASM21042-08: Nut Style: HEXAGON; Nominal Thread Size: 0.164 INCHES IN; Material: STEEL OVERALL; Thread Direction: RIGHT-HAND. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-807-1473 still in active supply?

NSN 5310-00-807-1473 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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