PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5361662 ITEM 34Screw,cap,hexagon Head

Naval Sea Systems Command · NSN 5305-01-099-8973 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-099-8973 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-099-8973. Primary manufacturer part number: 5361662 ITEM 34.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Fastener Length: 1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
  • Surface Treatment: ZINC AND CHROMATE OVERALL
  • Departure From Cited Document: AS MODIFIED BY SURFACE FINISH
  • Nondefinitive Spec/std Data: 1 TYPE AND 5 GRADE
  • Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
  • Minimum Yield Strength: 90000 POUNDS PER SQUARE INCH LBS
  • Surface Treatment Document and Classification: ASTM B633 TY 2 CL FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-099-8973, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-01-099-8973
Primary Part Number5361662 ITEM 34
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusCANCELLED
Fastener Length1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
Surface TreatmentZINC AND CHROMATE OVERALL
Departure From Cited DocumentAS MODIFIED BY SURFACE FINISH
Nondefinitive Spec/std Data1 TYPE AND 5 GRADE
Hardness Rating23.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
Minimum Yield Strength90000 POUNDS PER SQUARE INCH LBS
Surface Treatment Document and ClassificationASTM B633 TY 2 CL FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Material Document and ClassificationSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL OVERALL
Width Between Flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Minimum Tensile Strength120000 POUNDS PER SQUARE INCH LBS
Head StyleHEXAGON
Thread Length1.018 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
Thread Class3A A
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.500 INCHES IN
Head Height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
Thread Quantity Per Inch13
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5306-00-270-9438 INTERCHANGEABLE
Bolt,machine
5310-00-551-6691 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
5361662 ITEM 34 Naval Sea Systems Command (USA)
FF-S-85 TY 2 ST 10P GR 2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MIL-DTL-1222 TY 1 GR 5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-001222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5306-00-270-9438INTERCHANGEABLE
BOLT,MACHINE
5310-00-551-6691INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5305-01-099-8973?

NSN 5305-01-099-8973 is a Screw,cap,hexagon Head, manufactured by Naval Sea Systems Command, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-01-099-8973?

NSN 5305-01-099-8973 has 4 cross-referenced part numbers: 5361662 ITEM 34 (Naval Sea Systems Command), FF-S-85 TY 2 ST 10P GR 2 (Federal Specifications Promulgated by General Services Administration Washington DC), MIL-DTL-1222 TY 1 GR 5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-S-001222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-01-099-8973?

There are 2 known substitutes for 5305-01-099-8973: 5306-00-270-9438, 5310-00-551-6691. Verify interchangeability with system specifications before substitution.

What are the specifications of 5361662 ITEM 34?

Key specifications for 5361662 ITEM 34: Fastener Length: 1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN; Surface Treatment: ZINC AND CHROMATE OVERALL; Departure From Cited Document: AS MODIFIED BY SURFACE FINISH; Nondefinitive Spec/std Data: 1 TYPE AND 5 GRADE. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-01-099-8973 still in active supply?

NSN 5305-01-099-8973 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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