PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1634Bolt,machine

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · NSN 5306-00-449-3988 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-449-3988 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-449-3988. Primary manufacturer part number: 1634.
Features
  • Bolt,machine — FSC 5306
  • Features Provided: FINISHED HEAD
  • Hole Type: DRILLED
  • Hole Diameter: 0.070 INCHES NOMINAL IN
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Hole Configuration Style: HEXAGON FLATS
  • Thread Length: 0.875 INCHES MINIMUM IN
  • Material: STEEL COMP 4140 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4140 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-449-3988, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor. Government technical data includes 18 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
NSN5306-00-449-3988
Primary Part Number1634
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
StatusACTIVE
Features ProvidedFINISHED HEAD
Hole TypeDRILLED
Hole Diameter0.070 INCHES NOMINAL IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Hole Configuration StyleHEXAGON FLATS
Thread Length0.875 INCHES MINIMUM IN
MaterialSTEEL COMP 4140 OVERALL
Nominal Thread Diameter0.312 INCHES IN
Head Height0.312 INCHES NOMINAL IN
Thread Class2A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Fastener Length1.750 INCHES NOMINAL IN
Hole Quantity1
Thread Quantity Per Inch18
Head StyleHEXAGON
Width Between Flats0.500 INCHES NOMINAL IN
Grip Length0.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-012-1832121832 INTERCHANGEABLE
Screw,machine
Us Army Aviation and Missile Command
6240-00-014-5416 INTERCHANGEABLE
Lamp,incandescent
6240-00-057-19661634 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5905-00-106-7007C600012885 INTERCHANGEABLE
Resistor Set,matched
Kearfott Corporation Div Guidance and Navigation Division
5315-00-193-64658A7188 INTERCHANGEABLE
Pin,straight,headless
Napco International Llc Dba Napco International Inc
5950-00-289-98841783709-34 INTERCHANGEABLE
Transformer,audio Frequency
Honeywell International Inc. Dba Honeywell International
4820-00-331-35371634 INTERCHANGEABLE
Valve,safety Relief
Rgi Inc Dba Rgi Inc
5330-00-362-2115F400A336 INTERCHANGEABLE
Gasket
Sealcraft Corporation
4730-00-517-8062 INTERCHANGEABLE
Fitting,lubrication
8135-01-030-1634030-1634 INTERCHANGEABLE
Seal,strapping
Caprice Electronics, Inc
Cross-Reference Index
Part NumberManufacturer
1634 PRIMARY Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
Related Parts
5305-00-012-1832INTERCHANGEABLE
SCREW,MACHINE
121832
6240-00-014-5416INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-057-1966INTERCHANGEABLE
LAMP,INCANDESCENT
1634
5905-00-106-7007INTERCHANGEABLE
RESISTOR SET,MATCHED
C600012885
5315-00-193-6465INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
8A7188
5950-00-289-9884INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
1783709-34
4820-00-331-3537INTERCHANGEABLE
VALVE,SAFETY RELIEF
1634
5330-00-362-2115INTERCHANGEABLE
GASKET
F400A336
4730-00-517-8062INTERCHANGEABLE
FITTING,LUBRICATION
8135-01-030-1634INTERCHANGEABLE
SEAL,STRAPPING
030-1634
4820-01-033-2207INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
1634
4820-01-062-3839INTERCHANGEABLE
SLEEVE ASSEMBLY,VALVE
1028-5-3400

Frequently Asked Questions

What is NSN 5306-00-449-3988?

NSN 5306-00-449-3988 is a Bolt,machine, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-449-3988?

NSN 5306-00-449-3988 has 1 cross-referenced part number: 1634 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).

What NSN replaces 5306-00-449-3988?

There are 12 known substitutes for 5306-00-449-3988: 5305-00-012-1832, 6240-00-014-5416, 6240-00-057-1966 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1634?

Key specifications for 1634: Features Provided: FINISHED HEAD; Hole Type: DRILLED; Hole Diameter: 0.070 INCHES NOMINAL IN; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL. 18 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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