PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35307-346Screw,cap,hexagon Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-252-5070 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-252-5070 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-252-5070. Primary manufacturer part number: MS35307-346.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Quantity Per Inch: 18
  • Minimum Yield Strength: 30000 POUNDS PER SQUARE INCH LBS
  • Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 302B OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL
  • Hardness Rating: 80.0 ROCKWELL B MINIMUM OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Surface Treatment: PASSIVATE OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 10P STYLE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 303 or Steel Comp 302b or Steel Comp 303SE or Steel Comp 304 or Steel Comp 304l or Steel Comp 305 or Steel Comp 308 or Steel Comp 309 or Steel Comp 309s or Steel Comp 310 or Steel Comp 310s or Steel Comp 314 or Steel Comp 316 or Steel Comp 316l or Steel Comp 317 or Steel Comp 321 or Steel Comp 347 or Steel Comp 348 or Steel Comp 384 or Steel Comp 385 Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-252-5070, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-252-5070
Primary Part NumberMS35307-346
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Thread Quantity Per Inch18
Minimum Yield Strength30000 POUNDS PER SQUARE INCH LBS
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 302B OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL
Hardness Rating80.0 ROCKWELL B MINIMUM OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Surface TreatmentPASSIVATE OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE
Head StyleHEXAGON
Head Height0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
Thread Class2A A
Nominal Thread Diameter0.312 INCHES IN
Thread DirectionRIGHT-HAND
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Thread Length0.875 INCHES MINIMUM IN
Width Between Flats0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Fastener Length3.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
3110-00-109-1124 INTERCHANGEABLE
Bearing,ball,annular
6680-00-251-224728441 INTERCHANGEABLE
Transmitter,liquid Quantity
Janke & Company Inc Dba Electronic Brazing Co Div
3020-00-267-335125 INTERCHANGEABLE
Chain,roller
Diamond Chain Co Div of Amsted Industries Inc
4820-00-308-985228441 INTERCHANGEABLE
Valve Assy,equalize
Leslie Controls, Inc. Dba Leslie Controls Inc
5930-00-557-42272131815-11 INTERCHANGEABLE
Switch,code Indicating Wheel
Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div
3120-01-007-0532 INTERCHANGEABLE
Bearing,sleeve
3120-01-015-523128441 INTERCHANGEABLE
Bearing,sleeve
Hydro-Aire Aerospace Corp
5340-01-193-0580028441 INTERCHANGEABLE
Hook,spring
Abd Intl Inc Dba Abdick
4720-01-351-811628441 INTERCHANGEABLE
Hose,nonmetallic
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
28441 Dresser, Llc (USA)
FF-S-85 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS35307-346 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
NASM35307 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS35307-346 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
3110-00-109-1124INTERCHANGEABLE
BEARING,BALL,ANNULAR
6680-00-251-2247INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
28441
3020-00-267-3351INTERCHANGEABLE
CHAIN,ROLLER
25
4820-00-308-9852INTERCHANGEABLE
VALVE ASSY,EQUALIZE
28441
5930-00-557-4227INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
2131815-11
3120-01-007-0532INTERCHANGEABLE
BEARING,SLEEVE
3120-01-015-5231INTERCHANGEABLE
BEARING,SLEEVE
28441
5340-01-193-0580INTERCHANGEABLE
HOOK,SPRING
028441
4720-01-351-8116INTERCHANGEABLE
HOSE,NONMETALLIC
28441

Frequently Asked Questions

What is NSN 5305-00-252-5070?

NSN 5305-00-252-5070 is a Screw,cap,hexagon Head, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-252-5070?

NSN 5305-00-252-5070 has 5 cross-referenced part numbers: 28441 (Dresser, Llc), FF-S-85 (Federal Specifications Promulgated by General Services Administration Washington DC), MS35307-346 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), NASM35307 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS35307-346 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5305-00-252-5070?

There are 9 known substitutes for 5305-00-252-5070: 3110-00-109-1124, 6680-00-251-2247, 3020-00-267-3351 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35307-346?

Key specifications for MS35307-346: Thread Quantity Per Inch: 18; Minimum Yield Strength: 30000 POUNDS PER SQUARE INCH LBS; Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 302B OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL; Hardness Rating: 80.0 ROCKWELL B MINIMUM OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-252-5070 still in active supply?

NSN 5305-00-252-5070 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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