PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HTS-4AScrewdriver Attachment,socket Wr

Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing · NSN 5120-00-863-4943 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-863-4943 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-863-4943. Primary manufacturer part number: HTS-4A.
Features
  • Screwdriver Attachment,socket Wr — FSC 5120
  • Wrenching Surface Shape: HIGH TORQUE SINGLE END EXTERNAL
  • Material: STEEL OVERALL
  • Outside Diameter: 0.750 INCHES NOMINAL IN
  • Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
  • Surface Treatment: OXIDE OVERALL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Tip Size Designation: 4
Applications
  • Applications requiring Steel Overall construction
General Description

The Screwdriver Attachment,socket Wr, cataloged under National Stock Number 5120-00-863-4943, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-863-4943
Primary Part NumberHTS-4A
Item NameScrewdriver Attachment,socket Wr
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerKeltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing
StatusACTIVE
Wrenching Surface ShapeHIGH TORQUE SINGLE END EXTERNAL
MaterialSTEEL OVERALL
Outside Diameter0.750 INCHES NOMINAL IN
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Surface TreatmentOXIDE OVERALL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Tip Size Designation4
Style DesignatorHI-TORQUE
Torque Capacity250.0 INCH-POUNDS NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-315-4005HT3305M INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing
5120-00-797-2992HTS-2 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Omega Technologies, Inc Dba Omega Technologies Inc
5120-00-797-2994HTS-4 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing
5120-00-863-4940HTS-7 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing
5120-00-863-49415120-00-863-4941 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
General Services Administration Federal Supply Service
5120-00-863-4942HTS-5 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing
5120-00-863-4944HTS-3 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Omega Technologies, Inc Dba Omega Technologies Inc
5120-00-863-4945 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
5120-00-903-8938HTS-1 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing
5120-00-937-8481HTS10 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Hi-Shear Corporation
Cross-Reference Index
Part NumberManufacturer
HTS4A Hi-Shear Corporation (USA)
HTS4A Satair A/s (DNK)
HTS-4A PRIMARY Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing (USA)
5120PL0878975 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MIL-B-9946/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
HTS4A Fairchild Fasteners Europe - Vsd Gmbh (DEU)
MIL-B-9946 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
HTS-4A Apex Tool Group, Llc (USA)
Related Parts
5120-00-315-4005INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
HT3305M
5120-00-797-2992INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
HTS-2
5120-00-797-2994INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
HTS-4
5120-00-863-4940INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
HTS-7
5120-00-863-4941INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
5120-00-863-4941
5120-00-863-4942INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
HTS-5
5120-00-863-4944INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
HTS-3
5120-00-863-4945INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
5120-00-903-8938INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
HTS-1
5120-00-937-8481INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
HTS10
5130-00-996-0901INTERCHANGEABLE
BIT,SCREWDRIVER
I-440-3
5130-00-996-0911INTERCHANGEABLE
BIT,SCREWDRIVER
440-2X

Frequently Asked Questions

What is NSN 5120-00-863-4943?

NSN 5120-00-863-4943 is a Screwdriver Attachment,socket Wr, manufactured by Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-863-4943?

NSN 5120-00-863-4943 has 8 cross-referenced part numbers: HTS4A (Hi-Shear Corporation), HTS4A (Satair A/s), HTS-4A (Keltek Specialty Tool Design & Manufacture, Inc. Dba Keltek Specialty Tool Design & Manufacturing), 5120PL0878975 (Jednolity Indeks Materialowy - Uniform Material Index), MIL-B-9946/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5120-00-863-4943?

There are 12 known substitutes for 5120-00-863-4943: 5120-00-315-4005, 5120-00-797-2992, 5120-00-797-2994 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HTS-4A?

Key specifications for HTS-4A: Overall Length: 1.250 INCHES NOMINAL IN; Wrenching Surface Shape: HIGH TORQUE SINGLE END EXTERNAL; Material: STEEL OVERALL; Outside Diameter: 0.750 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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