PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81-3/4Hook,screw

Laser Science Inc · NSN 5340-00-290-4140 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-290-4140 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-290-4140. Primary manufacturer part number: 81-3/4.
Features
  • Hook,screw — FSC 5340
  • Nonmachine Thread Style: WOOD SCREW (TYPE WD)
  • Material: COPPER ALLOY OVERALL
  • Style Designator: ROUND BEND
  • Nonmachine Nominal Thread Diameter: 0.099 INCHES IN
  • Projection Length: 0.750 INCHES NOMINAL IN
  • Wire Diameter: 0.092 INCHES NOMINAL IN
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Hook,screw, cataloged under National Stock Number 5340-00-290-4140, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Laser Science Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-290-4140
Primary Part Number81-3/4
Item NameHook,screw
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerLaser Science Inc
StatusCANCELLED
Nonmachine Thread StyleWOOD SCREW (TYPE WD)
MaterialCOPPER ALLOY OVERALL
Style DesignatorROUND BEND
Nonmachine Nominal Thread Diameter0.099 INCHES IN
Projection Length0.750 INCHES NOMINAL IN
Wire Diameter0.092 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
No Item Name Available
5930-00-043-27148134 INTERCHANGEABLE
Switch,sensitive
Haydon Kerk Motion Solutions, Inc. Dba Haydon Kerk Motion Solutions Inc Div Haydon Kerk
4730-00-144-4948 INTERCHANGEABLE
Elbow,pipe
2920-00-374-31808134 INTERCHANGEABLE
Lead,ignition,engine
Champion Aerospace Llc
5935-00-498-00241203 INTERCHANGEABLE
Jack,tip
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5360-00-625-9195 INTERCHANGEABLE
Spring,helical,compression
2930-00-844-86098134 INTERCHANGEABLE
Water Pump
Elgin Industries Inc. Dba
5330-00-872-38078134 INTERCHANGEABLE
Packing,preformed
Circor Aerospace, Inc. Dba Circor Aerospace Inc
4720-01-290-151221430 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5305-01-342-61508314-454 INTERCHANGEABLE
Screw,cap,hexagon Head
Richards Industries Valve Group Jordan Valve Div
Cross-Reference Index
Part NumberManufacturer
81-3/4 PRIMARY Laser Science Inc (USA)
Related Parts
5340-00-526-1707SUCCESSOR
NO ITEM NAME AVAILABLE
5930-00-043-2714INTERCHANGEABLE
SWITCH,SENSITIVE
8134
4730-00-144-4948INTERCHANGEABLE
ELBOW,PIPE
2920-00-374-3180INTERCHANGEABLE
LEAD,IGNITION,ENGINE
8134
5935-00-498-0024INTERCHANGEABLE
JACK,TIP
1203
5360-00-625-9195INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2930-00-844-8609INTERCHANGEABLE
WATER PUMP
8134
5330-00-872-3807INTERCHANGEABLE
PACKING,PREFORMED
8134
4720-01-290-1512INTERCHANGEABLE
HOSE,PREFORMED
21430
5305-01-342-6150INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
8314-454
5340-01-440-8653INTERCHANGEABLE
CLAMP,LOOP
8134
8415-01-529-8861INTERCHANGEABLE
GLOVES,MEN'S
8134

Frequently Asked Questions

What is NSN 5340-00-290-4140?

NSN 5340-00-290-4140 is a Hook,screw, manufactured by Laser Science Inc, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-290-4140?

NSN 5340-00-290-4140 has 1 cross-referenced part number: 81-3/4 (Laser Science Inc).

What NSN replaces 5340-00-290-4140?

There are 12 known substitutes for 5340-00-290-4140: 5340-00-526-1707, 5930-00-043-2714, 4730-00-144-4948 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 81-3/4?

Key specifications for 81-3/4: Nonmachine Thread Style: WOOD SCREW (TYPE WD); Material: COPPER ALLOY OVERALL; Style Designator: ROUND BEND; Nonmachine Nominal Thread Diameter: 0.099 INCHES IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-290-4140 still in active supply?

NSN 5340-00-290-4140 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.
PartsTable Design LLC · partstable.com