PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

277519Bolt,externally Relieved Body

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5306-00-530-9854 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-530-9854 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-530-9854. Primary manufacturer part number: 277519.
Features
  • Bolt,externally Relieved Body — FSC 5306
  • Head Height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
  • Extended Washer Thickness: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
  • Fastener Length: 1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN
  • Material Document and Classification: AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 601 OVERALL
  • Externally Relieved Body Diameter Quantity: 1
  • Surface Treatment: CADMIUM OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 601 Overall construction
General Description

The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-530-9854, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-530-9854
Primary Part Number277519
Item NameBolt,externally Relieved Body
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Head Height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Extended Washer Thickness0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
Fastener Length1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN
Material Document and ClassificationAMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 601 OVERALL
Externally Relieved Body Diameter Quantity1
Surface TreatmentCADMIUM OVERALL
Thread Length0.866 INCHES MINIMUM AND 0.946 INCHES MAXIMUM IN
First Diameter From Head0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
Width Between Flats0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Hole TypeDRILLED
Head StyleDOUBLE HEXAGON W/HOLE
Hole Diameter0.065 INCHES NOMINAL IN
Hardness Rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Nonstandard Thread Pitch Diameter+0.3023 TO 0.3095 INCHES IN
Thread Quantity Per Inch24
Extended Washer Diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Hole Quantity4
Surface Treatment Document and ClassificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Distance From Largest Bearing Surface of Head to End of First Diameter0.502 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Nominal Thread Diameter0.312 INCHES IN
Hole Configuration StyleDOUBLE HEXAGON LONGITUDINAL HOLE
Thread Series DesignatorUNF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6670-01-671-260193019 INTERCHANGEABLE
Scale,spring
Forestry Suppliers Inc
Cross-Reference Index
Part NumberManufacturer
277519 Sps Technologies, Llc Dba PB Fasteners (USA)
277519 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
277519 Textron Fastening Systems Dba Decorah Operations Tfs (USA)
277519 Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
277519 Valco Co Government Sales Office (USA)
Related Parts
6670-01-671-2601INTERCHANGEABLE
SCALE,SPRING
93019

Frequently Asked Questions

What is NSN 5306-00-530-9854?

NSN 5306-00-530-9854 is a Bolt,externally Relieved Body, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-530-9854?

NSN 5306-00-530-9854 has 5 cross-referenced part numbers: 277519 (Sps Technologies, Llc Dba PB Fasteners), 277519 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 277519 (Textron Fastening Systems Dba Decorah Operations Tfs), 277519 (Howmet Global Fastening Systems Inc Div Torrance Operations), 277519 (Valco Co Government Sales Office).

What NSN replaces 5306-00-530-9854?

There is 1 known substitute for 5306-00-530-9854: 6670-01-671-2601. Verify interchangeability with system specifications before substitution.

What are the specifications of 277519?

Key specifications for 277519: Head Height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Extended Washer Thickness: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN; Fastener Length: 1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN; Material Document and Classification: AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 24 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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