PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GB511GY1Bolt,machine

Northrop Grumman Systems Corporation · NSN 5306-01-398-3572 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-398-3572 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-398-3572. Primary manufacturer part number: GB511GY1.
Features
  • Bolt,machine — FSC 5306
  • Surface Treatment: ZINC OVERALL
  • Material: STEEL OVERALL
  • Thread Series Designator: UNF
  • Head Style: HEXAGON COUNTERSUNK
  • Countersink Angle: 60.0 DEGREES NOMINAL
  • Nominal Thread Diameter: 0.500 INCHES IN
  • Width Between Flats: 0.750 INCHES NOMINAL 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 5306-01-398-3572, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 11 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-01-398-3572
Primary Part NumberGB511GY1
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Thread Series DesignatorUNF
Head StyleHEXAGON COUNTERSUNK
Countersink Angle60.0 DEGREES NOMINAL
Nominal Thread Diameter0.500 INCHES IN
Width Between Flats0.750 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Class3A A
Thread Quantity Per Inch20
Thread Length0.718 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-100-315815118 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5940-00-269-853210-402-3 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
5120-00-293-300215253 INTERCHANGEABLE
Face,hammer,inserted
Nupla Corporation
5360-00-597-3183 INTERCHANGEABLE
Spring,helical,compression
6230-00-688-99971525-T8 INTERCHANGEABLE
Light,extension
K & H Industries, Inc. Dba K & H Industries
3110-00-903-1493HJ324116 INTERCHANGEABLE
Bearing,roller,needle
Jtekt Bearings North America Llc Div Kbna - Ord 1
5365-00-919-2134 INTERCHANGEABLE
Spacer,sleeve
4710-01-124-608415253 INTERCHANGEABLE
Pipe,oil Cooler
Sabre Engines Ltd
9150-01-708-9623LUBRIPLATE 105 TUBE 10 OZ INTERCHANGEABLE
Grease,utility
Fiske Bros Refining Co
Cross-Reference Index
Part NumberManufacturer
GB511GY1 Northrop Grumman Systems Corporation (USA)
15253 Dico Inc Sub of Dyneer Corp (USA)
Related Parts
3110-00-100-3158INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
15118
5940-00-269-8532INTERCHANGEABLE
TERMINAL,STUD
10-402-3
5120-00-293-3002INTERCHANGEABLE
FACE,HAMMER,INSERTED
15253
5360-00-597-3183INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
6230-00-688-9997INTERCHANGEABLE
LIGHT,EXTENSION
1525-T8
3110-00-903-1493INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
HJ324116
5365-00-919-2134INTERCHANGEABLE
SPACER,SLEEVE
4710-01-124-6084INTERCHANGEABLE
PIPE,OIL COOLER
15253
9150-01-708-9623INTERCHANGEABLE
GREASE,UTILITY
LUBRIPLATE 105 TUBE 10 OZ

Frequently Asked Questions

What is NSN 5306-01-398-3572?

NSN 5306-01-398-3572 is a Bolt,machine, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-01-398-3572?

NSN 5306-01-398-3572 has 2 cross-referenced part numbers: GB511GY1 (Northrop Grumman Systems Corporation), 15253 (Dico Inc Sub of Dyneer Corp).

What NSN replaces 5306-01-398-3572?

There are 9 known substitutes for 5306-01-398-3572: 3110-00-100-3158, 5940-00-269-8532, 5120-00-293-3002 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GB511GY1?

Key specifications for GB511GY1: Surface Treatment: ZINC OVERALL; Material: STEEL OVERALL; Thread Series Designator: UNF; Head Style: HEXAGON COUNTERSUNK. 11 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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