PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ET38Key,socket Head Screw

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-397-5817 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-397-5817 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-397-5817. Primary manufacturer part number: ET38.
Features
  • Key,socket Head Screw — FSC 5120
  • Wrenching Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN
  • Material: STEEL OVERALL
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Surface Treatment: OXIDE OVERALL
  • Style Designator: L-HANDLE
  • Features Provided: SHORT SERIES
  • 6 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-01-397-5817, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-397-5817
Primary Part NumberET38
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusCANCELLED
Wrenching Surface Size0.375 INCHES NOMINAL BOTH ENDS IN
MaterialSTEEL OVERALL
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Surface TreatmentOXIDE OVERALL
Style DesignatorL-HANDLE
Features ProvidedSHORT SERIES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
3110-00-005-618515124 INTERCHANGEABLE
Bearing,ball,annular
Industrial Technologies and Services Llc
5133-00-232-8161 INTERCHANGEABLE
Drill,twist
5330-00-285-6834106272 INTERCHANGEABLE
Seal,plain Encased
Cummins Inc.
5940-00-926-0034 INTERCHANGEABLE
Terminal,stud
3040-01-027-136215124 INTERCHANGEABLE
Clamp,hub
H-K Connecticut Holding Company
5355-01-134-586415124 INTERCHANGEABLE
Pointer,dial
Aerosonic Llc
4710-01-310-95471512642 INTERCHANGEABLE
Tube Assembly,metal
Dana Off Highway Products, Llc
6515-01-537-1164 INTERCHANGEABLE
Clamp,tube,angle
5120-01-652-2423 INTERCHANGEABLE
Key,socket Head Screw
Cross-Reference Index
Part NumberManufacturer
ET38 PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
FRS ET38 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
10760ACV-3/8 Internova - Cz Gmbh, Spol. S R.o. (CZE)
43550024 Internova - Cz Gmbh, Spol. S R.o. (CZE)
15124 PRIMARY Eklind Tool Co (USA)
151.2642 Jp Stroje S.r.o. (CZE)
Related Parts
3110-00-005-6185INTERCHANGEABLE
BEARING,BALL,ANNULAR
15124
5133-00-232-8161INTERCHANGEABLE
DRILL,TWIST
5330-00-285-6834INTERCHANGEABLE
SEAL,PLAIN ENCASED
106272
5940-00-926-0034INTERCHANGEABLE
TERMINAL,STUD
3040-01-027-1362INTERCHANGEABLE
CLAMP,HUB
15124
5355-01-134-5864INTERCHANGEABLE
POINTER,DIAL
15124
4710-01-310-9547INTERCHANGEABLE
TUBE ASSEMBLY,METAL
1512642
6515-01-537-1164INTERCHANGEABLE
CLAMP,TUBE,ANGLE
5120-01-652-2423INTERCHANGEABLE
KEY,SOCKET HEAD SCREW

Frequently Asked Questions

What is NSN 5120-01-397-5817?

NSN 5120-01-397-5817 is a Key,socket Head Screw, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-397-5817?

NSN 5120-01-397-5817 has 6 cross-referenced part numbers: ET38 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), FRS ET38 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 10760ACV-3/8 (Internova - Cz Gmbh, Spol. S R.o.), 43550024 (Internova - Cz Gmbh, Spol. S R.o.), 15124 (Eklind Tool Co) and 1 more.

What NSN replaces 5120-01-397-5817?

There are 9 known substitutes for 5120-01-397-5817: 3110-00-005-6185, 5133-00-232-8161, 5330-00-285-6834 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ET38?

Key specifications for ET38: Wrenching Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN; Material: STEEL OVERALL; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL; Surface Treatment: OXIDE OVERALL. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-397-5817 still in active supply?

NSN 5120-01-397-5817 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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