PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

120955Bolt,square Neck

Army Weapons Command Attn Amswe-Ree-S · NSN 5306-00-012-0955 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-012-0955 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-012-0955. Primary manufacturer part number: 120955.
Features
  • Bolt,square Neck — FSC 5306
  • Thread Length: 1.500 INCHES MINIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Hardness Rating: 95.0 ROCKWELL B MAXIMUM OVERALL
  • Neck Width: 0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN
  • Head Diameter: 1.219 INCHES MINIMUM AND 1.344 INCHES MAXIMUM IN
  • Fastener Length: 2.500 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 11
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 5306-00-012-0955, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Army Weapons Command Attn Amswe-Ree-S. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5306-00-012-0955
Primary Part Number120955
Item NameBolt,square Neck
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerArmy Weapons Command Attn Amswe-Ree-S
StatusCANCELLED
Thread Length1.500 INCHES MINIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Hardness Rating95.0 ROCKWELL B MAXIMUM OVERALL
Neck Width0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN
Head Diameter1.219 INCHES MINIMUM AND 1.344 INCHES MAXIMUM IN
Fastener Length2.500 INCHES NOMINAL IN
Thread Quantity Per Inch11
Head StyleBUTTON
Minimum Tensile Strength55000 POUNDS PER SQUARE INCH LBS
Thread Class2A A
Head Height0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
Nominal Thread Diameter0.625 INCHES IN
Thread DirectionRIGHT-HAND
Neck Length0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Material Document and ClassificationGM 255M,GENERAL MOTORS CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-006-2269 (MS35751-53)
HAZMATNo
Verified Substitutes 12
5306-00-006-2269MS35751-53 SUCCESSOR
Bolt,square Neck
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Bolt,square Neck
5306-00-012-023121260 SUCCESSOR
Bolt,square Neck
Fastenal Company
5306-00-012-61984864282 ITEM 31 SUCCESSOR
Bolt,square Neck
Naval Ship Systems Command
Bolt,square Neck
Bolt,square Neck
Bolt,square Neck
Bolt,square Neck
Bolt,square Neck
Bolt,square Neck
Cross-Reference Index
Part NumberManufacturer
120955 Army Weapons Command Attn Amswe-Ree-S (USA)
FFB584 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
SUCCESSOR 5306-00-006-2269 Bolt,square Neck · MS35751-53
5306-00-011-9430SUCCESSOR
BOLT,SQUARE NECK
5306-00-012-0231SUCCESSOR
BOLT,SQUARE NECK
21260
5306-00-012-6198SUCCESSOR
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4864282 ITEM 31
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5306-00-012-6638SUCCESSOR
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5306-00-012-6652SUCCESSOR
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5306-00-044-5623SUCCESSOR
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5306-00-054-8024SUCCESSOR
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5306-00-058-0518SUCCESSOR
BOLT,SQUARE NECK
5306-00-058-9259SUCCESSOR
BOLT,SQUARE NECK
MS35751-32
5306-00-089-0174SUCCESSOR
BOLT,SQUARE NECK

Frequently Asked Questions

What is NSN 5306-00-012-0955?

NSN 5306-00-012-0955 is a Bolt,square Neck, manufactured by Army Weapons Command Attn Amswe-Ree-S, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-012-0955?

NSN 5306-00-012-0955 has 2 cross-referenced part numbers: 120955 (Army Weapons Command Attn Amswe-Ree-S), FFB584 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5306-00-012-0955?

There are 12 known substitutes for 5306-00-012-0955: 5306-00-006-2269, 5306-00-011-9430, 5306-00-012-0231 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 120955?

Key specifications for 120955: Thread Length: 1.500 INCHES MINIMUM IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Hardness Rating: 95.0 ROCKWELL B MAXIMUM OVERALL; Neck Width: 0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-012-0955 still in active supply?

NSN 5306-00-012-0955 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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