PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1352-6-56PScrew,cap,socket Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-983-5340 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-983-5340 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-983-5340. Primary manufacturer part number: NAS1352-6-56P.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Quantity Per Inch: 16
  • Head Height: 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
  • Minimum Tensile Strength: 160000 POUNDS PER SQUARE INCH LBS
  • Head Style: FLAT CHAMFER
  • Internal Drive Style: HEXAGON
  • Thread Class: 3A A
  • Minimum Yield Strength: 130000 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-983-5340, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-983-5340
Primary Part NumberNAS1352-6-56P
Item NameScrew,cap,socket 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 Inch16
Head Height0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Minimum Tensile Strength160000 POUNDS PER SQUARE INCH LBS
Head StyleFLAT CHAMFER
Internal Drive StyleHEXAGON
Thread Class3A A
Minimum Yield Strength130000 POUNDS PER SQUARE INCH LBS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Hardness Rating36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
Nondefinitive Spec/std Data6 TYPE
Fastener Length3.440 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN
Thread Length1.440 INCHES MINIMUM AND 1.813 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Thread Diameter0.375 INCHES IN
Width Across Flats0.312 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
Surface TreatmentCADMIUM AND CHROMATE OVERALL
MaterialSTEEL OVERALL
Thread DirectionRIGHT-HAND
Head Diameter0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
6145-00-060-20125493 INTERCHANGEABLE
Cable,radio Frequency
Rscc Wire & Cable Llc Dba Marmon Industrial Energy & Infrastructure - East Granby
5985-00-156-0748549-3 INTERCHANGEABLE
Dummy Load,electrical
Omega Laboratories Inc
4730-00-270-38565493 INTERCHANGEABLE
Chuck,air,inflating
Schrader-Bridgeport International Inc Dba Schrader Automotive
5962-00-365-5728 INTERCHANGEABLE
Microcircuit,digital
5340-00-490-3948LS15290A03A INTERCHANGEABLE
Bumper
Lockheed Martin Corp
2520-00-696-47845493 INTERCHANGEABLE
Gear,helical and Sp
Eaton Corp Transmission Div
5330-01-411-3862549-3 INTERCHANGEABLE
Retainer,packing
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
6640-01-558-296526 58 48 15 INTERCHANGEABLE
Processing Module,vacuum,tissue
Hacker Industries Inc Dba Hacker Instruments & Industries
Cross-Reference Index
Part NumberManufacturer
NAS1352-6-56P PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS16997-109 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FF-S-86 REVISON C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
5493 Husco International Inc (USA)
A222127P11 Taylor Machine Works Inc (USA)
DF38-304 Pierce Manufacturing Inc (USA)
Related Parts
6145-00-060-2012INTERCHANGEABLE
CABLE,RADIO FREQUENCY
5493
5985-00-156-0748INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
549-3
4730-00-270-3856INTERCHANGEABLE
CHUCK,AIR,INFLATING
5493
5962-00-365-5728INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5340-00-490-3948INTERCHANGEABLE
BUMPER
LS15290A03A
2520-00-696-4784INTERCHANGEABLE
GEAR,HELICAL AND SP
5493
5330-01-411-3862INTERCHANGEABLE
RETAINER,PACKING
549-3
6640-01-558-2965INTERCHANGEABLE
PROCESSING MODULE,VACUUM,TISSUE
26 58 48 15

Frequently Asked Questions

What is NSN 5305-00-983-5340?

NSN 5305-00-983-5340 is a Screw,cap,socket 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 5305-00-983-5340?

NSN 5305-00-983-5340 has 6 cross-referenced part numbers: NAS1352-6-56P (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS16997-109 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-S-86 REVISON C (Federal Specifications Promulgated by General Services Administration Washington DC), 5493 (Husco International Inc), A222127P11 (Taylor Machine Works Inc) and 1 more.

What NSN replaces 5305-00-983-5340?

There are 8 known substitutes for 5305-00-983-5340: 6145-00-060-2012, 5985-00-156-0748, 4730-00-270-3856 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1352-6-56P?

Key specifications for NAS1352-6-56P: Thread Quantity Per Inch: 16; Head Height: 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Minimum Tensile Strength: 160000 POUNDS PER SQUARE INCH LBS; Head Style: FLAT CHAMFER. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-983-5340 still in active supply?

NSN 5305-00-983-5340 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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