PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

340-9Nut,plain,slotted,hexagon

Hamilton Sundstrand Corporation · NSN 5310-00-176-8113 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-176-8113 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-176-8113. Primary manufacturer part number: 340-9.
Features
  • Nut,plain,slotted,hexagon — FSC 5310
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Bearing Surface Finish: 125.0 MICROINCHES
  • Thread Series: UNF
  • Nominal Thread Size: 0.562 INCHES IN
  • Thread Quantity Per Inch: 18
  • Thread Class: 3B
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-176-8113, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hamilton Sundstrand Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-176-8113
Primary Part Number340-9
Item NameNut,plain,slotted,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation
StatusACTIVE
Bearing Surface TypeCHAMFERED OR WASHER FACED
Bearing Surface Finish125.0 MICROINCHES
Thread SeriesUNF
Nominal Thread Size0.562 INCHES IN
Thread Quantity Per Inch18
Thread Class3B
MaterialSTEEL OVERALL
Width Across Flats0.863 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Nut StyleSLOTTED, HEXAGON
Nut Height0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-00-200-62583409 INTERCHANGEABLE
Gasket
Industrial Technologies and Services Llc
4730-00-439-1722SAE J512 6-6 010102B INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
1660-00-511-35053409 INTERCHANGEABLE
Filler Assy
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
6640-00-526-8113 INTERCHANGEABLE
Pipet,measuring
3110-00-554-34661409-1B1 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
5910-01-084-6231C3409-7 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Crown Audio, Inc. Dba Crown International
2540-01-185-61748Y4032 INTERCHANGEABLE
Belt,vehicular Safety
Caterpillar Inc Div Caterpillar Defense
5120-01-428-8007 INTERCHANGEABLE
Extension,socket Wrench
Cross-Reference Index
Part NumberManufacturer
340-9 PRIMARY Hamilton Sundstrand Corporation (USA)
AN320-9 Leonardo Spa Helicopters Division - Production Site (ITA)
2152 Renk America Llc Div Renk America (USA)
AN320-9 Leonardo Uk Ltd (GBR)
23X35 Franklin Engine Co Inc (USA)
175S3 Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA)
AN320-9 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
AN320-9 Aeronautical Standards Group Dept of Navy and Air Force (USA)
2152 Satair A/s (DNK)
A63-45-9 Harvard Industries (USA)
Related Parts
5330-00-200-6258INTERCHANGEABLE
GASKET
3409
4730-00-439-1722INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
SAE J512 6-6 010102B
1660-00-511-3505INTERCHANGEABLE
FILLER ASSY
3409
6640-00-526-8113INTERCHANGEABLE
PIPET,MEASURING
3110-00-554-3466INTERCHANGEABLE
BEARING,BALL,ANNULAR
1409-1B1
5910-01-084-6231INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
C3409-7
2540-01-185-6174INTERCHANGEABLE
BELT,VEHICULAR SAFETY
8Y4032
5120-01-428-8007INTERCHANGEABLE
EXTENSION,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5310-00-176-8113?

NSN 5310-00-176-8113 is a Nut,plain,slotted,hexagon, manufactured by Hamilton Sundstrand Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-176-8113?

NSN 5310-00-176-8113 has 10 cross-referenced part numbers: 340-9 (Hamilton Sundstrand Corporation), AN320-9 (Leonardo Spa Helicopters Division - Production Site), 2152 (Renk America Llc Div Renk America), AN320-9 (Leonardo Uk Ltd), 23X35 (Franklin Engine Co Inc) and 5 more.

What NSN replaces 5310-00-176-8113?

There are 8 known substitutes for 5310-00-176-8113: 5330-00-200-6258, 4730-00-439-1722, 1660-00-511-3505 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 340-9?

Key specifications for 340-9: Bearing Surface Type: CHAMFERED OR WASHER FACED; Bearing Surface Finish: 125.0 MICROINCHES; Thread Series: UNF; Nominal Thread Size: 0.562 INCHES IN. 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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