PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

122138Bolt,machine

Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana · NSN 5306-01-055-7735 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-055-7735 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-055-7735. Primary manufacturer part number: 122138.
Features
  • Bolt,machine — FSC 5306
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Material Document and Classification: AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Hardness Rating: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
  • Hole Configuration Style: ROUND
  • Thread Length: 1.188 INCHES NOMINAL IN
  • Fastener Length: 3.361 INCHES MINIMUM AND 3.391 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-01-055-7735, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-01-055-7735
Primary Part Number122138
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF)
Material Document and ClassificationAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentCADMIUM OVERALL
Hardness Rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
Hole Configuration StyleROUND
Thread Length1.188 INCHES NOMINAL IN
Fastener Length3.361 INCHES MINIMUM AND 3.391 INCHES MAXIMUM IN
Hole Diameter0.055 INCHES NOMINAL IN
Grip Length2.188 INCHES NOMINAL IN
Thread Class3A A
Hole TypeDRILLED
Thread Quantity Per Inch16
Nominal Thread Diameter0.750 INCHES IN
Hole Quantity4
Thread DirectionRIGHT-HAND
Surface Treatment Document and ClassificationMIL-C-8837 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5306-00-297-8699122138 SUCCESSOR
Bolt,machine
Chrysler Realty Company Llc Dba Daimler Chrysler
5999-01-580-3466122138 INTERCHANGEABLE
Tnc Crimp Jack
Amphenol Corporation Div Amphenol Rf
5360-01-594-0818122138 INTERCHANGEABLE
Spring,helical,extension
Midmark Corporation Dba Midmark Corp
1730-01-659-9985122138 INTERCHANGEABLE
Cover,aircraft Ground Servicing
Shield Technologies Corp Div Shield Technologies Corporation
Cross-Reference Index
Part NumberManufacturer
C9851-12 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
C9851-12 Sps Technologies, Llc Dba PB Fasteners (USA)
C9851-12 Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA)
122138 PRIMARY Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA)
C9851-12 Aerospace Manufacturing Corporation Dba Aerospace Manufacturing Inc (USA)
C9851-12 Acufast Aircraft Products (USA)
C9851-12 Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
C9851-12 M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA)
C9851-12 Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA)
Related Parts
5306-00-297-8699SUCCESSOR
BOLT,MACHINE
122138
5999-01-580-3466INTERCHANGEABLE
TNC CRIMP JACK
122138
5360-01-594-0818INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
122138
1730-01-659-9985INTERCHANGEABLE
COVER,AIRCRAFT GROUND SERVICING
122138

Frequently Asked Questions

What is NSN 5306-01-055-7735?

NSN 5306-01-055-7735 is a Bolt,machine, manufactured by Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-01-055-7735?

NSN 5306-01-055-7735 has 9 cross-referenced part numbers: C9851-12 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), C9851-12 (Sps Technologies, Llc Dba PB Fasteners), C9851-12 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 122138 (Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana), C9851-12 (Aerospace Manufacturing Corporation Dba Aerospace Manufacturing Inc) and 4 more.

What NSN replaces 5306-01-055-7735?

There are 4 known substitutes for 5306-01-055-7735: 5306-00-297-8699, 5999-01-580-3466, 5360-01-594-0818 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 122138?

Key specifications for 122138: Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); Material Document and Classification: AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: CADMIUM OVERALL; Hardness Rating: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL. 17 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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