PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

219287Bolt,machine

Howmet Global Fastening Systems Inc Div Torrance Operations · NSN 5306-00-639-4175 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-639-4175 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-639-4175. Primary manufacturer part number: 219287.
Features
  • Bolt,machine — FSC 5306
  • Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Surface Treatment Document and Classification: AMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL
  • Thread Series Designator: UNF
  • Material Document and Classification: AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: NICKEL AND CADMIUM OVERALL
  • Thread Length: 0.500 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
  • Grip Length: 0.680 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 601 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-639-4175, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc Div Torrance Operations. Government technical data includes 23 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-639-4175
Primary Part Number219287
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc Div Torrance Operations
StatusACTIVE
Hardness Rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Surface Treatment Document and ClassificationAMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL
Thread Series DesignatorUNF
Material Document and ClassificationAMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentNICKEL AND CADMIUM OVERALL
Thread Length0.500 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
Grip Length0.680 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch20
Fastener Length1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN
Hole Quantity4
Head Height0.506 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
Features ProvidedFINISHED HEAD
MaterialSTEEL COMP 601 OVERALL
Extended Washer Thickness0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
Hole Configuration StyleHEXAGON LONGITUDINAL HOLE
Nonstandard Thread Pitch Diameter+0.4613 TO 0.4645 INCHES IN
Head StyleDOUBLE HEXAGON EXTENDED WASHER
Nominal Thread Diameter0.500 INCHES IN
Hole TypeDRILLED
Width Between Flats0.550 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
Hole Diameter0.065 INCHES NOMINAL IN
Extended Washer Diameter0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5330-00-103-5635219287 INTERCHANGEABLE
Gasket
Dana Off Highway Products, Llc
5310-01-169-675121-9287 INTERCHANGEABLE
Nut,plain,hexagon
Johnson Controls Navy Systems, Llc
5310-01-291-0006219-287 INTERCHANGEABLE
Nut,plain,plate
Crane Carrier Company, Llc
5995-01-571-4995219287 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Vaisala Inc.
Cross-Reference Index
Part NumberManufacturer
219287 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
219287 PRIMARY Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
Related Parts
5330-00-103-5635INTERCHANGEABLE
GASKET
219287
5310-01-169-6751INTERCHANGEABLE
NUT,PLAIN,HEXAGON
21-9287
5310-01-291-0006INTERCHANGEABLE
NUT,PLAIN,PLATE
219-287
5995-01-571-4995INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
219287

Frequently Asked Questions

What is NSN 5306-00-639-4175?

NSN 5306-00-639-4175 is a Bolt,machine, manufactured by Howmet Global Fastening Systems Inc Div Torrance Operations, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-639-4175?

NSN 5306-00-639-4175 has 2 cross-referenced part numbers: 219287 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 219287 (Howmet Global Fastening Systems Inc Div Torrance Operations).

What NSN replaces 5306-00-639-4175?

There are 4 known substitutes for 5306-00-639-4175: 5330-00-103-5635, 5310-01-169-6751, 5310-01-291-0006 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 219287?

Key specifications for 219287: Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL; Surface Treatment Document and Classification: AMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL; Thread Series Designator: UNF; Material Document and Classification: AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 23 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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