PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

161818Screw,tapping

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 5305-00-081-6794 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-081-6794 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-081-6794. Primary manufacturer part number: 161818.
Features
  • Screw,tapping — FSC 5305
  • Head Diameter: 0.281 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
  • Nonmachine Nominal Thread Diameter: 0.151 INCHES IN
  • Material: STEEL OVERALL
  • Fastener Length: 0.375 INCHES NOMINAL IN
  • Head Height: 0.096 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,tapping, cataloged under National Stock Number 5305-00-081-6794, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 11 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-081-6794
Primary Part Number161818
Item NameScrew,tapping
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusCANCELLED
Head Diameter0.281 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OR ZINC OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
Nonmachine Nominal Thread Diameter0.151 INCHES IN
MaterialSTEEL OVERALL
Fastener Length0.375 INCHES NOMINAL IN
Head Height0.096 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Nonmachine Thread StyleGIMLET POINT (TYPE A, AB OR BA)
Head StylePAN
Internal Drive StyleCROSS RECESS TYPE 1
Features ProvidedCASEHARDENED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-014-3189 INTERCHANGEABLE
Screw,tapping
5305-00-017-2046 INTERCHANGEABLE
Screw,tapping
5305-00-133-1985NASM51861-39C INTERCHANGEABLE
Screw,tapping
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-145-8368 INTERCHANGEABLE
Screw,tapping
5305-00-253-5616MS21318-22 INTERCHANGEABLE
Screw,drive
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-253-5630MS21318-54 INTERCHANGEABLE
Screw,drive
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-281-5993MD-2-421 INTERCHANGEABLE
Screw,tapping
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5305-00-465-662689096-16J INTERCHANGEABLE
Screw Tapping
Trico Products Corporation
5305-00-476-7554NASM51861-72C INTERCHANGEABLE
Screw,tapping
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-638-1761 INTERCHANGEABLE
Screw,drive
Cross-Reference Index
Part NumberManufacturer
FF-S-107C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FFS107 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
161818 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5305-00-014-3189INTERCHANGEABLE
SCREW,TAPPING
5305-00-017-2046INTERCHANGEABLE
SCREW,TAPPING
5305-00-133-1985INTERCHANGEABLE
SCREW,TAPPING
NASM51861-39C
5305-00-145-8368INTERCHANGEABLE
SCREW,TAPPING
5305-00-253-5616INTERCHANGEABLE
SCREW,DRIVE
MS21318-22
5305-00-253-5630INTERCHANGEABLE
SCREW,DRIVE
MS21318-54
5305-00-281-5993INTERCHANGEABLE
SCREW,TAPPING
MD-2-421
5305-00-465-6626INTERCHANGEABLE
SCREW TAPPING
89096-16J
5305-00-476-7554INTERCHANGEABLE
SCREW,TAPPING
NASM51861-72C
5305-00-638-1761INTERCHANGEABLE
SCREW,DRIVE
5305-00-754-4355INTERCHANGEABLE
SCREW,TAPPING
127851
5935-00-857-6547INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
161818

Frequently Asked Questions

What is NSN 5305-00-081-6794?

NSN 5305-00-081-6794 is a Screw,tapping, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-081-6794?

NSN 5305-00-081-6794 has 3 cross-referenced part numbers: FF-S-107C (Federal Specifications Promulgated by General Services Administration Washington DC), FFS107 (Federal Specifications Promulgated by General Services Administration Washington DC), 161818 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 5305-00-081-6794?

There are 12 known substitutes for 5305-00-081-6794: 5305-00-014-3189, 5305-00-017-2046, 5305-00-133-1985 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 161818?

Key specifications for 161818: Head Diameter: 0.281 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN; Surface Treatment: CADMIUM OR ZINC OVERALL; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Nonmachine Nominal Thread Diameter: 0.151 INCHES IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-081-6794 still in active supply?

NSN 5305-00-081-6794 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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