PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

35-21Bolt,shoulder

Dresser Industries Inc Leroi Div · NSN 5306-00-218-1436 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-218-1436 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-218-1436. Primary manufacturer part number: 35-21.
Features
  • Bolt,shoulder — FSC 5306
  • Head Height: 0.250 INCHES NOMINAL IN
  • Shoulder Diameter: 0.439 INCHES NOMINAL FIRST SHOULDER IN
  • Nominal Thread Diameter: 0.438 INCHES IN
  • Thread Direction: RIGHT-HAND
  • Thread Quantity Per Inch: 20
  • Material Document and Classification: MIL-S-5626 COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Head Diameter: 0.688 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4140 Overall construction
General Description

The Bolt,shoulder, cataloged under National Stock Number 5306-00-218-1436, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 17 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: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-218-1436
Primary Part Number35-21
Item NameBolt,shoulder
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusCANCELLED
Head Height0.250 INCHES NOMINAL IN
Shoulder Diameter0.439 INCHES NOMINAL FIRST SHOULDER IN
Nominal Thread Diameter0.438 INCHES IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch20
Material Document and ClassificationMIL-S-5626 COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Head Diameter0.688 INCHES NOMINAL IN
Width Between Flats0.558 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Minimum Yield Strength125000 POUNDS PER SQUARE INCH LBS
Thread Length0.750 INCHES MINIMUM IN
Shoulder Length1.000 INCHES NOMINAL FIRST SHOULDER IN
MaterialSTEEL COMP 4140 OVERALL
Fastener Length2.250 INCHES NOMINAL IN
Thread Class3A A
Head StyleROUND W/WRENCH FLATS
Thread Series DesignatorUNF
Shoulder ShapeROUND FIRST SHOULDER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6510-00-054-72567000030208 INTERCHANGEABLE
Skin Closure,adhesive,surgical
Solventum Us Llc
3110-00-100-5842108-109-6PC487 INTERCHANGEABLE
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Struthers Wells Corp
5120-00-104-55596-76070-1 INTERCHANGEABLE
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Northrop Grumman Systems Corporation
4820-00-200-0664CFA40614 INTERCHANGEABLE
Valve,globe
Curtis Dyna-Fog, Ltd.
4730-00-867-90283521 INTERCHANGEABLE
Adapter Bushing
Coffin Turbo Pump Inc
5935-00-899-36693521-C INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5950-00-910-93186140026-12 INTERCHANGEABLE
Transformer,radio Frequency
Viking Technologies, Ltd.
4920-00-918-49593-5-2-1 INTERCHANGEABLE
Lift Pin
Celtech Corporation Div Use CAGE 65552 for All Orders
3020-01-025-82763521 INTERCHANGEABLE
Gear Cam Assembly
Kearflex Engineering Company
3010-01-068-786835-21 INTERCHANGEABLE
Plate Reducer
Cone Drive Operations Inc
Cross-Reference Index
Part NumberManufacturer
35-21 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
6510-00-054-7256INTERCHANGEABLE
SKIN CLOSURE,ADHESIVE,SURGICAL
7000030208
3110-00-100-5842INTERCHANGEABLE
BEARING,ROLLER,TAPERED
108-109-6PC487
5120-00-104-5559INTERCHANGEABLE
WRENCH,ORIFICE
6-76070-1
4820-00-200-0664INTERCHANGEABLE
VALVE,GLOBE
CFA40614
4730-00-867-9028INTERCHANGEABLE
ADAPTER BUSHING
3521
5935-00-899-3669INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3521-C
5950-00-910-9318INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
6140026-12
4920-00-918-4959INTERCHANGEABLE
LIFT PIN
3-5-2-1
3020-01-025-8276INTERCHANGEABLE
GEAR CAM ASSEMBLY
3521
3010-01-068-7868INTERCHANGEABLE
PLATE REDUCER
35-21
5935-01-087-0186INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3521
5950-01-135-7731INTERCHANGEABLE
TRANSFORMER,POWER

Frequently Asked Questions

What is NSN 5306-00-218-1436?

NSN 5306-00-218-1436 is a Bolt,shoulder, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-218-1436?

NSN 5306-00-218-1436 has 1 cross-referenced part number: 35-21 (Dresser Industries Inc Leroi Div).

What NSN replaces 5306-00-218-1436?

There are 12 known substitutes for 5306-00-218-1436: 6510-00-054-7256, 3110-00-100-5842, 5120-00-104-5559 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 35-21?

Key specifications for 35-21: Head Height: 0.250 INCHES NOMINAL IN; Shoulder Diameter: 0.439 INCHES NOMINAL FIRST SHOULDER IN; Nominal Thread Diameter: 0.438 INCHES IN; Thread Direction: RIGHT-HAND. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-218-1436 still in active supply?

NSN 5306-00-218-1436 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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