PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15502Key,socket Head Screw

Eklind Tool Co · NSN 5120-01-644-3455 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-644-3455 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-644-3455. Primary manufacturer part number: 15502.
Features
  • Key,socket Head Screw — FSC 5120
  • Wrenching Surface Size: 1.3 MILLIMETERS NOMINAL BOTH ENDS MM
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Surface Treatment: OXIDE OVERALL
  • Short Arm Length: 0.530 INCHES NOMINAL IN
  • Long Arm Length: 1.630 INCHES NOMINAL IN
  • Features Provided: SHORT SERIES
  • Style Designator: L-HANDLE
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 5120-01-644-3455, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Eklind Tool Co. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-644-3455
Primary Part Number15502
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEklind Tool Co
StatusACTIVE
Wrenching Surface Size1.3 MILLIMETERS NOMINAL BOTH ENDS MM
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Surface TreatmentOXIDE OVERALL
Short Arm Length0.530 INCHES NOMINAL IN
Long Arm Length1.630 INCHES NOMINAL IN
Features ProvidedSHORT SERIES
Style DesignatorL-HANDLE
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5110-00-243-2006 INTERCHANGEABLE
Reamer,hand
6145-00-643-2458 INTERCHANGEABLE
Wire,electrical
4920-00-834-780415502 INTERCHANGEABLE
Valve,special
Elbitamerica, Inc.
5110-01-057-0098 INTERCHANGEABLE
Knife,pocket
6515-01-234-0253155-02 INTERCHANGEABLE
Mallet,bone Surgery
Zimmer Us Inc Dba Zimmer Us, Inc
5310-01-249-287115502 INTERCHANGEABLE
Nut,plain,knurled
Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division
5340-01-538-2015 INTERCHANGEABLE
Cover,access
6515-01-584-473305.001.225 INTERCHANGEABLE
Attachment,reciprocating Saw
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
3040-01-655-029115502 INTERCHANGEABLE
Connecting Link,rigid
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
B18.3.2M The American Society of Mechanical Engineers (USA)
15502 PRIMARY Eklind Tool Co (USA)
Related Parts
5110-00-243-2006INTERCHANGEABLE
REAMER,HAND
6145-00-643-2458INTERCHANGEABLE
WIRE,ELECTRICAL
4920-00-834-7804INTERCHANGEABLE
VALVE,SPECIAL
15502
5110-01-057-0098INTERCHANGEABLE
KNIFE,POCKET
6515-01-234-0253INTERCHANGEABLE
MALLET,BONE SURGERY
155-02
5310-01-249-2871INTERCHANGEABLE
NUT,PLAIN,KNURLED
15502
5340-01-538-2015INTERCHANGEABLE
COVER,ACCESS
6515-01-584-4733INTERCHANGEABLE
ATTACHMENT,RECIPROCATING SAW
05.001.225
3040-01-655-0291INTERCHANGEABLE
CONNECTING LINK,RIGID
15502

Frequently Asked Questions

What is NSN 5120-01-644-3455?

NSN 5120-01-644-3455 is a Key,socket Head Screw, manufactured by Eklind Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-644-3455?

NSN 5120-01-644-3455 has 2 cross-referenced part numbers: B18.3.2M (The American Society of Mechanical Engineers), 15502 (Eklind Tool Co).

What NSN replaces 5120-01-644-3455?

There are 9 known substitutes for 5120-01-644-3455: 5110-00-243-2006, 6145-00-643-2458, 4920-00-834-7804 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15502?

Key specifications for 15502: Wrenching Surface Size: 1.3 MILLIMETERS NOMINAL BOTH ENDS MM; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL; Surface Treatment: OXIDE OVERALL; Short Arm Length: 0.530 INCHES NOMINAL IN. 8 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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