PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN4-25Bolt,machine

Aeronautical Standards Group Dept of Navy and Air Force · NSN 5306-00-151-1144 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-151-1144 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-151-1144. Primary manufacturer part number: AN4-25.
Features
  • Bolt,machine — FSC 5306
  • Thread Class: 3A A
  • Width Between Flats: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
  • Thread Series Designator: UNF
  • Shank Unthreaded Hole Diameter: 0.076 INCHES MINIMUM FIRST HOLE IN
  • Thread Direction: RIGHT-HAND
  • Distance From Head Largest Bearing Surface to Shank Hole Center: 2.500 INCHES NOMINAL FIRST HOLE IN
  • Thread Quantity Per Inch: 28
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4037 or Steel Comp 4130 or Steel Comp 8630 or Steel Comp 8735 or Steel Comp 8740 or Steel Comp 4140 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-151-1144, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-151-1144
Primary Part NumberAN4-25
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusCANCELLED
Thread Class3A A
Width Between Flats0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Shank Unthreaded Hole Diameter0.076 INCHES MINIMUM FIRST HOLE IN
Thread DirectionRIGHT-HAND
Distance From Head Largest Bearing Surface to Shank Hole Center2.500 INCHES NOMINAL FIRST HOLE IN
Thread Quantity Per Inch28
Material Document and ClassificationMIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
Head StyleHEXAGON
Grip Length2.188 INCHES NOMINAL IN
Nominal Thread Diameter0.250 INCHES IN
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Thread Length0.468 INCHES MINIMUM IN
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Features ProvidedFINISHED HEAD
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Fastener Length2.656 INCHES NOMINAL IN
MaterialSTEEL COMP 4037 OR STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Head Height0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
No Item Name Available
5306-00-260-7571 INTERCHANGEABLE
Bolt,eye
5990-00-473-180990935S6505-736731PC188 INTERCHANGEABLE
Synchro,transmitter
Naval Ship Systems Command
3040-00-517-1159A1003 INTERCHANGEABLE
Ball Joint
Cablecraft Motion Controls Llc
3110-00-554-6034 INTERCHANGEABLE
Bearing,ball,annular
4940-00-624-0684 INTERCHANGEABLE
Maintenance Platform
9510-01-015-7214 INTERCHANGEABLE
Bar,metal
2835-01-059-5583A108 INTERCHANGEABLE
Arm,crank
Simmonds Precision Products Inc
5120-01-068-5189A-108 INTERCHANGEABLE
Adapter,socket Wrench
Apex Tool Group, Llc
6680-01-133-0316A-108 INTERCHANGEABLE
Flow Meter Assemby
De Nora Water Technologies Llc Div F/k/a Capital Controls Co., Inc.
Cross-Reference Index
Part NumberManufacturer
AN4-25 Aeronautical Standards Group Dept of Navy and Air Force (USA)
900894K1 Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA)
900894K1 Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) (USA)
A108 Triumph Engine Control Systems Llc (USA)
Related Parts
5306-00-637-7742SUCCESSOR
NO ITEM NAME AVAILABLE
5306-00-260-7571INTERCHANGEABLE
BOLT,EYE
5990-00-473-1809INTERCHANGEABLE
SYNCHRO,TRANSMITTER
90935S6505-736731PC188
3040-00-517-1159INTERCHANGEABLE
BALL JOINT
A1003
3110-00-554-6034INTERCHANGEABLE
BEARING,BALL,ANNULAR
4940-00-624-0684INTERCHANGEABLE
MAINTENANCE PLATFORM
9510-01-015-7214INTERCHANGEABLE
BAR,METAL
2835-01-059-5583INTERCHANGEABLE
ARM,CRANK
A108
5120-01-068-5189INTERCHANGEABLE
ADAPTER,SOCKET WRENCH
A-108
6680-01-133-0316INTERCHANGEABLE
FLOW METER ASSEMBY
A-108
3040-01-345-9383INTERCHANGEABLE
SHAFT,FAN
1 1/36X23 3/4
6625-01-496-7485INTERCHANGEABLE
TEST SET,ELECTRICAL CABLE
A108

Frequently Asked Questions

What is NSN 5306-00-151-1144?

NSN 5306-00-151-1144 is a Bolt,machine, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-151-1144?

NSN 5306-00-151-1144 has 4 cross-referenced part numbers: AN4-25 (Aeronautical Standards Group Dept of Navy and Air Force), 900894K1 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)), 900894K1 (Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)), A108 (Triumph Engine Control Systems Llc).

What NSN replaces 5306-00-151-1144?

There are 12 known substitutes for 5306-00-151-1144: 5306-00-637-7742, 5306-00-260-7571, 5990-00-473-1809 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN4-25?

Key specifications for AN4-25: Thread Class: 3A A; Width Between Flats: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN; Thread Series Designator: UNF; Shank Unthreaded Hole Diameter: 0.076 INCHES MINIMUM FIRST HOLE IN. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-151-1144 still in active supply?

NSN 5306-00-151-1144 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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