PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ESNA 09NU-149Nut,self-Locking,hexagon

Esna, Llc · NSN 5310-00-088-5329 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-088-5329 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-088-5329. Primary manufacturer part number: ESNA 09NU-149.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Quantity Per Inch: 9
  • Nominal Thread Size: 0.875 INCHES IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Criticality Code Justification: ZZZW
  • Bearing Surface Type: WASHER FACED
  • Thread Direction: RIGHT-HAND
  • Thread Class: 3B
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy and Plastic Polyamide Nylon Nut construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-088-5329, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Esna, Llc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-088-5329
Primary Part NumberESNA 09NU-149
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEsna, Llc
StatusACTIVE
Thread Quantity Per Inch9
Nominal Thread Size0.875 INCHES IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Criticality Code JustificationZZZW
Bearing Surface TypeWASHER FACED
Thread DirectionRIGHT-HAND
Thread Class3B
Width Across Flats1.427 INCHES MINIMUM AND 1.446 INCHES MAXIMUM IN
MaterialNICKEL ALLOY AND PLASTIC POLYAMIDE NYLON NUT
Departure From Cited DocumentMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Nut StyleHEXAGON
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Nut Height1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-245-350510010 INTERCHANGEABLE
Nut,self-Locking,hexagon
Weil Pump Co Inc
5310-01-206-2821 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-375-0654 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-385-5986M32258-UAC14 INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-537-57884384583 PC 37 INTERCHANGEABLE
Nut,self-Locking,hexagon
Naval Ship Systems Command
5310-01-700-4924 INTERCHANGEABLE
Nut,self-Locking,hexagon
Cross-Reference Index
Part NumberManufacturer
ESNA 09NU-149 Esna, Llc (USA)
PL-999R0501 FIND 76L1 Naval Inventory Control Point Mechanicsburg (USA)
PL-999R0501-D FIND 76 Circor Naval Solutions Llc Dba Warren Pumps (USA)
ESNA 09NU-149 Harvard Industries Inc (USA)
999F0937 FN 76 Circor Naval Solutions Llc Dba Warren Pumps (USA)
4457353 PIECE 37L1 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
6405340 FIND 24L1 Naval Inventory Control Point Mechanicsburg (USA)
PL999R0523 PIECE 76 Circor Naval Solutions Llc Dba Warren Pumps (USA)
M25027/1-14CL1 Naval Inventory Control Point Mechanicsburg (USA)
PL-999R0501 FIND 76 Circor Naval Solutions Llc Dba Warren Pumps (USA)
801-6405340 FIND25L1 Naval Inventory Control Point Mechanicsburg (USA)
4457348 PIECE 37 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
PL-999F0937 FN 76L1 Naval Inventory Control Point Mechanicsburg (USA)
1930038 PC 27 Naval Ship Systems Command (USA)
ESNA 09NU-149L1 Naval Inventory Control Point Mechanicsburg (USA)
845-7108795 ITEM 54L1 Naval Inventory Control Point Mechanicsburg (USA)
MS17828-14L1 Naval Inventory Control Point Mechanicsburg (USA)
64053040 FIND 25L1 Naval Inventory Control Point Mechanicsburg (USA)
2655-561-02-PC NO-73-2AL1 Naval Inventory Control Point Mechanicsburg (USA)
2640-247PC13 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
5310-00-245-3505INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
10010
5310-01-206-2821INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-375-0654INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-385-5986INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
M32258-UAC14
5310-01-537-5788INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
4384583 PC 37
5310-01-700-4924INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-088-5329?

NSN 5310-00-088-5329 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-088-5329?

NSN 5310-00-088-5329 has 50 cross-referenced part numbers: ESNA 09NU-149 (Esna, Llc), PL-999R0501 FIND 76L1 (Naval Inventory Control Point Mechanicsburg), PL-999R0501-D FIND 76 (Circor Naval Solutions Llc Dba Warren Pumps), ESNA 09NU-149 (Harvard Industries Inc), 999F0937 FN 76 (Circor Naval Solutions Llc Dba Warren Pumps) and 45 more.

What NSN replaces 5310-00-088-5329?

There are 6 known substitutes for 5310-00-088-5329: 5310-00-245-3505, 5310-01-206-2821, 5310-01-375-0654 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ESNA 09NU-149?

Key specifications for ESNA 09NU-149: Thread Quantity Per Inch: 9; Nominal Thread Size: 0.875 INCHES IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Special Features: 7/8 IN, 9 UNC,3B IN. 14 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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