PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15598758Screw,cap,hexagon Head

General Motors Llc Dba General Motors Llc · NSN 5305-01-161-5502 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-161-5502 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-161-5502. Primary manufacturer part number: 15598758.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
  • Fastener Length: 0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
  • Surface Treatment: ZINC OVERALL
  • Surface Treatment Document and Classification: GM 4342-M CODE 20U32,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL
  • Material Document and Classification: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1013 or Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1020 or Steel Comp 1021 or Steel Comp 1022 or Steel Comp 1023 or Steel Comp 1524 or Steel Comp 1025 or Steel Comp 1026 or Steel Comp 1527 or Steel Comp 1029 or Steel Comp 1030 or Steel Comp 1033 or Steel Comp 1034 or Steel Comp 1035 or Steel Comp 1536 or Steel Comp 1037 or Steel Comp 1038 or Steel Comp 1039 or Steel Comp 1040 or Steel Comp 1541 Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-161-5502, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-01-161-5502
Primary Part Number15598758
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerGeneral Motors Llc Dba General Motors Llc
StatusCANCELLED
Head Height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
Fastener Length0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Surface TreatmentZINC OVERALL
Surface Treatment Document and ClassificationGM 4342-M CODE 20U32,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1527 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OR STEEL COMP 1536 OR STEEL COMP 1037 OR STEEL COMP 1038 OR STEEL COMP 1039 OR STEEL COMP 1040 OR STEEL COMP 1541 OVERALL
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Nominal Thread Diameter0.375 INCHES IN
Thread Length0.724 INCHES MAXIMUM IN
Thread Quantity Per Inch16
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Thread Class2A A
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Head StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5305-01-140-9118B1821BH038C088N INTERCHANGEABLE
Screw,cap,hexagon Head
American National Standards Institute Incorporated Dba American National Standards Institute
Cross-Reference Index
Part NumberManufacturer
454905 General Motors Corp Chevrolet Motor Div Special Products Dept (USA)
15598758 PRIMARY General Motors Llc Dba General Motors Llc (USA)
15598758 General Motors Corp Chevrolet Motor Div Special Products Dept (USA)
Related Parts
5305-01-140-9118INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
B1821BH038C088N

Frequently Asked Questions

What is NSN 5305-01-161-5502?

NSN 5305-01-161-5502 is a Screw,cap,hexagon Head, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-01-161-5502?

NSN 5305-01-161-5502 has 3 cross-referenced part numbers: 454905 (General Motors Corp Chevrolet Motor Div Special Products Dept), 15598758 (General Motors Llc Dba General Motors Llc), 15598758 (General Motors Corp Chevrolet Motor Div Special Products Dept).

What NSN replaces 5305-01-161-5502?

There is 1 known substitute for 5305-01-161-5502: 5305-01-140-9118. Verify interchangeability with system specifications before substitution.

What are the specifications of 15598758?

Key specifications for 15598758: Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN; Fastener Length: 0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-01-161-5502 still in active supply?

NSN 5305-01-161-5502 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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