PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70-4-6Bolt,square Neck

Air Force Standard · NSN 5306-00-208-1532 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-208-1532 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-208-1532. Primary manufacturer part number: 70-4-6.
Features
  • Bolt,square Neck — FSC 5306
  • Neck Width: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
  • Neck Length: 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
  • Thread Class: 2A A
  • Thread Direction: RIGHT-HAND
  • Nondefinitive Spec/std Data: C2 TYPE AND C CLASS
  • Head Style: BUTTON
  • Fastener Length: 0.750 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,square Neck, cataloged under National Stock Number 5306-00-208-1532, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Air Force Standard. Government technical data includes 16 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: Active.

Technical Specifications
ParameterValue
NSN5306-00-208-1532
Primary Part Number70-4-6
Item NameBolt,square Neck
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerAir Force Standard
StatusACTIVE
Neck Width0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Neck Length0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Thread Class2A A
Thread DirectionRIGHT-HAND
Nondefinitive Spec/std DataC2 TYPE AND C CLASS
Head StyleBUTTON
Fastener Length0.750 INCHES NOMINAL IN
Thread Length0.375 INCHES MINIMUM IN
Features ProvidedSQUARE NUT
Thread Quantity Per Inch20
MaterialSTEEL OVERALL
Head Diameter0.563 INCHES NOMINAL IN
Nominal Thread Diameter0.250 INCHES IN
Head Height0.125 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Material Document and ClassificationFF-B-571 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6530-01-266-37787046 SUCCESSOR
Pad,bed Linen Protective
Kinetic Concepts, Inc. Dba Kci Usa
1650-00-071-63887046 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Pneudraulics, Inc.
5950-00-122-3482 INTERCHANGEABLE
Transformer,electrical
5330-00-130-7938704-6M99 INTERCHANGEABLE
Gasket
Winchester Interconnect Corporation
3110-00-156-8026 INTERCHANGEABLE
Bearing,ball,annular
4920-00-300-83537046 INTERCHANGEABLE
Compressor Assy
Allison Transmission Inc Dba Allison Transmission, Inc
5365-00-476-752470-46 INTERCHANGEABLE
Shim Set
Cone Drive Operations Inc
5995-00-480-7861004510 INTERCHANGEABLE
Cable Assembly,radio Frequency
Moog Inc Div Moog Inc., Space and Defense - Salt Lake City
5330-00-485-35862CT976 INTERCHANGEABLE
Packing,preformed
Oshkosh Defense Llc
6210-00-763-77771252WITH1259 INTERCHANGEABLE
Light Assembly,work
U S Industries Inc
Cross-Reference Index
Part NumberManufacturer
70-4-6 Air Force Standard
Related Parts
6530-01-266-3778SUCCESSOR
PAD,BED LINEN PROTECTIVE
7046
1650-00-071-6388INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
7046
5950-00-122-3482INTERCHANGEABLE
TRANSFORMER,ELECTRICAL
5330-00-130-7938INTERCHANGEABLE
GASKET
704-6M99
3110-00-156-8026INTERCHANGEABLE
BEARING,BALL,ANNULAR
4920-00-300-8353INTERCHANGEABLE
COMPRESSOR ASSY
7046
5365-00-476-7524INTERCHANGEABLE
SHIM SET
70-46
5995-00-480-7861INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
004510
5330-00-485-3586INTERCHANGEABLE
PACKING,PREFORMED
2CT976
6210-00-763-7777INTERCHANGEABLE
LIGHT ASSEMBLY,WORK
1252WITH1259
5998-01-008-7487INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5930-01-053-6263INTERCHANGEABLE
ARM,SWITCH ACTUATOR
7046

Frequently Asked Questions

What is NSN 5306-00-208-1532?

NSN 5306-00-208-1532 is a Bolt,square Neck, manufactured by Air Force Standard, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-208-1532?

NSN 5306-00-208-1532 has 1 cross-referenced part number: 70-4-6 (Air Force Standard).

What NSN replaces 5306-00-208-1532?

There are 12 known substitutes for 5306-00-208-1532: 6530-01-266-3778, 1650-00-071-6388, 5950-00-122-3482 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 70-4-6?

Key specifications for 70-4-6: Neck Width: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Neck Length: 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Thread Class: 2A A; Thread Direction: RIGHT-HAND. 16 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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