PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M85731/1-9Bolt Assembly,clamp

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5340-01-440-4536 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-440-4536 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-440-4536. Primary manufacturer part number: M85731/1-9.
Features
  • Bolt Assembly,clamp — FSC 5340
  • Thread Quantity Per Inch: 24
  • Thread Series Designator: UNF
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.312 INCHES IN
  • Material: UNABLE TO DECODE
  • Mounting Method: PIN(S)
  • Thread Length: 1.375 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Unable to Decode construction
General Description

The Bolt Assembly,clamp, cataloged under National Stock Number 5340-01-440-4536, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-440-4536
Primary Part NumberM85731/1-9
Item NameBolt Assembly,clamp
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Thread Quantity Per Inch24
Thread Series DesignatorUNF
Thread DirectionRIGHT-HAND
Nominal Thread Size0.312 INCHES IN
MaterialUNABLE TO DECODE
Mounting MethodPIN(S)
Thread Length1.375 INCHES NOMINAL IN
Style DesignatorKNURLED NO. 2
Thread Class3A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6530-01-619-1777 (50-0020)
HAZMATNo
Unit of IssueEA
Verified Substitutes 11
6530-01-619-177750-0020 SUCCESSOR
Restraint Kit,head
North American Rescue, Llc
5330-00-177-972111943A INTERCHANGEABLE
Seal,plain Encased
Brinkley Technology Group Llc Dba Hercules Manufacturing
1710-00-256-4336 INTERCHANGEABLE
Pad,impact
4730-00-289-034530846H INTERCHANGEABLE
Adapter,straight,pipe to Hose
Navistar Intl Corp Truck Br Ohio Plant
9330-00-478-6164 INTERCHANGEABLE
Plastic Sheet
5998-01-061-516950-0020 INTERCHANGEABLE
Circuit Card Assembly
Northrop Grumman Defense Mission Systems, Inc.
5330-01-091-1823500020 INTERCHANGEABLE
Gasket
Agm Container Controls Inc Dba Agm Container Controls Inc
5961-01-276-62031978067-102 INTERCHANGEABLE
Semiconductor Device,diode
Northrop Grumman Systems Corporation
5330-01-301-056550-0020 INTERCHANGEABLE
Seal,nonmetallic Channel
Lancer Corp
8345-01-463-9857500020 INTERCHANGEABLE
Pin,panel Marker
Clamshell Structures, Inc
Cross-Reference Index
Part NumberManufacturer
M85731/1-9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ST9M454-5-2 The Boeing Company Div Defense (USA)
MIL-DTL-85731/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2132564-1 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
500020 Monadnock Company, the Dba Lisi Aerospace (USA)
2132564-1 Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA)
Related Parts
SUCCESSOR 6530-01-619-1777 Restraint Kit,head · 50-0020
5330-00-177-9721INTERCHANGEABLE
SEAL,PLAIN ENCASED
11943A
1710-00-256-4336INTERCHANGEABLE
PAD,IMPACT
4730-00-289-0345INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
30846H
9330-00-478-6164INTERCHANGEABLE
PLASTIC SHEET
5998-01-061-5169INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
50-0020
5330-01-091-1823INTERCHANGEABLE
GASKET
500020
5961-01-276-6203INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1978067-102
5330-01-301-0565INTERCHANGEABLE
SEAL,NONMETALLIC CHANNEL
50-0020
8345-01-463-9857INTERCHANGEABLE
PIN,PANEL MARKER
500020
1080-01-681-8733INTERCHANGEABLE
BAG,CAMOUFLAGE NET
50-0020

Frequently Asked Questions

What is NSN 5340-01-440-4536?

NSN 5340-01-440-4536 is a Bolt Assembly,clamp, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-01-440-4536?

NSN 5340-01-440-4536 has 6 cross-referenced part numbers: M85731/1-9 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ST9M454-5-2 (The Boeing Company Div Defense), MIL-DTL-85731/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2132564-1 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), 500020 (Monadnock Company, the Dba Lisi Aerospace) and 1 more.

What NSN replaces 5340-01-440-4536?

There are 11 known substitutes for 5340-01-440-4536: 6530-01-619-1777, 5330-00-177-9721, 1710-00-256-4336 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M85731/1-9?

Key specifications for M85731/1-9: Thread Quantity Per Inch: 24; Thread Series Designator: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.312 INCHES IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-01-440-4536 still in active supply?

NSN 5340-01-440-4536 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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