PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

34-400Bolt,u

Dresser Industries Inc Leroi Div · NSN 5306-00-281-4737 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-281-4737 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-281-4737. Primary manufacturer part number: 34-400.
Features
  • Bolt,u — FSC 5306
  • Thread Direction: RIGHT-HAND
  • Inside Distance Between Shanks: 5.125 INCHES MINIMUM AND 5.187 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Material: STEEL COMP 1020 OVERALL
  • Thread Class: 3A A
  • Distance From Inside Center of Bend to Bolt End: 5.812 INCHES MINIMUM AND 5.843 INCHES MAXIMUM IN
  • Thread Length: 1.000 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1020 Overall construction
General Description

The Bolt,u, cataloged under National Stock Number 5306-00-281-4737, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 11 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-281-4737
Primary Part Number34-400
Item NameBolt,u
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Thread DirectionRIGHT-HAND
Inside Distance Between Shanks5.125 INCHES MINIMUM AND 5.187 INCHES MAXIMUM IN
Nominal Thread Diameter0.312 INCHES IN
MaterialSTEEL COMP 1020 OVERALL
Thread Class3A A
Distance From Inside Center of Bend to Bolt End5.812 INCHES MINIMUM AND 5.843 INCHES MAXIMUM IN
Thread Length1.000 INCHES NOMINAL IN
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorROUND BEND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch18
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
Retainer
6620-00-189-237634400 INTERCHANGEABLE
Gage Unit,engine
Meggitt (new Hampshire), Inc
5330-00-247-599334400 INTERCHANGEABLE
Packing,preformed
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
9905-00-902-30233440-0 INTERCHANGEABLE
Numeral,sign
Brady United States
5330-01-017-2591257129 INTERCHANGEABLE
Gasket
Bromine Systems Inc
4240-01-335-988334-400 INTERCHANGEABLE
Sock,spray
Bon Tool Co
8520-01-528-6644 INTERCHANGEABLE
Towelette,skin Cleansing
5935-01-553-641734400 INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corporation Div Amphenol Rf
6145-01-586-909134400 INTERCHANGEABLE
Cable,power,electrical
Belden Wire & Cable Co Electronics Div
6210-01-670-483134400 INTERCHANGEABLE
Light,indicator
Birdon America Inc
Cross-Reference Index
Part NumberManufacturer
34-400 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
5340-01-109-2717SUCCESSOR
RETAINER
6620-00-189-2376INTERCHANGEABLE
GAGE UNIT,ENGINE
34400
5330-00-247-5993INTERCHANGEABLE
PACKING,PREFORMED
34400
9905-00-902-3023INTERCHANGEABLE
NUMERAL,SIGN
3440-0
5330-01-017-2591INTERCHANGEABLE
GASKET
257129
4240-01-335-9883INTERCHANGEABLE
SOCK,SPRAY
34-400
8520-01-528-6644INTERCHANGEABLE
TOWELETTE,SKIN CLEANSING
5935-01-553-6417INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
34400
6145-01-586-9091INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
34400
6210-01-670-4831INTERCHANGEABLE
LIGHT,INDICATOR
34400

Frequently Asked Questions

What is NSN 5306-00-281-4737?

NSN 5306-00-281-4737 is a Bolt,u, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-281-4737?

NSN 5306-00-281-4737 has 1 cross-referenced part number: 34-400 (Dresser Industries Inc Leroi Div).

What NSN replaces 5306-00-281-4737?

There are 10 known substitutes for 5306-00-281-4737: 5340-01-109-2717, 6620-00-189-2376, 5330-00-247-5993 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 34-400?

Key specifications for 34-400: Thread Direction: RIGHT-HAND; Inside Distance Between Shanks: 5.125 INCHES MINIMUM AND 5.187 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.312 INCHES IN; Material: STEEL COMP 1020 OVERALL. 11 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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