PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20316Wrench,box and Open End,combinat

Apex Tool Group, Llc Dba Nicholson · NSN 5120-01-349-1444 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-349-1444 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-349-1444. Primary manufacturer part number: 20316.
Features
  • Wrench,box and Open End,combinat — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Shape: 12 POINT SECOND END INTERNAL
  • Nondefinitive Spec/std Data: 3 TYPE AND 1 CLASS AND B STYLE
  • Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching End Offset Angle: 15.0 DEGREES NOMINAL
  • Specification/standard Data: 81343-SAE AS955 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Size: 16.0 MILLIMETERS NOMINAL BOTH ENDS MM
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-01-349-1444, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc Dba Nicholson. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-349-1444
Primary Part Number20316
Item NameWrench,box and Open End,combinat
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusACTIVE
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Shape12 POINT SECOND END INTERNAL
Nondefinitive Spec/std Data3 TYPE AND 1 CLASS AND B STYLE
Head Angle15.0 DEGREES NOMINAL
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Specification/standard Data81343-SAE AS955 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Size16.0 MILLIMETERS NOMINAL BOTH ENDS MM
MaterialSTEEL OVERALL
Style DesignatorOFFSET
Wrenching Surface ShapeOVAL FIRST END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5940-00-144-20122031B1 INTERCHANGEABLE
Terminal,stud
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5306-00-151-0418 INTERCHANGEABLE
Bolt,machine
5310-00-187-186420-316 INTERCHANGEABLE
Washer,flat
Dresser Industries Inc Leroi Div
6810-00-614-969120353 INTERCHANGEABLE
Sulfuric Acid
Hach Company Dba Hach Co
4820-00-702-72779081298 INTERCHANGEABLE
Valve,globe
Us Army Aviation and Missile Command
4820-01-131-7696A13183.001.156 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5325-01-191-734620316 INTERCHANGEABLE
Insert,screw Thread
Moog Inc. Dba Ampac-Isp Corp
4820-01-192-290020316ES 91 SS INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
6515-01-306-5091 INTERCHANGEABLE
Screw,bone
6240-01-419-7732 INTERCHANGEABLE
Lamp,fluorescent
Cross-Reference Index
Part NumberManufacturer
20316 Apex Tool Group, Llc Dba Nicholson (USA)
B107.6 TY1 General Services Administration Federal Supply Service (USA)
OEXM16B Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
OEXM16 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.100 The American Society of Mechanical Engineers (USA)
B107.6 The American Society of Mechanical Engineers (USA)
AS955 Sae International Dba Sae International (USA)
AS955 Society of Automotive Engineers Inc (USA)
AS955 TY3CL1STB General Services Administration Federal Supply Service (USA)
ALN20316 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5940-00-144-2012INTERCHANGEABLE
TERMINAL,STUD
2031B1
5306-00-151-0418INTERCHANGEABLE
BOLT,MACHINE
5310-00-187-1864INTERCHANGEABLE
WASHER,FLAT
20-316
6810-00-614-9691INTERCHANGEABLE
SULFURIC ACID
20353
4820-00-702-7277INTERCHANGEABLE
VALVE,GLOBE
9081298
4820-01-131-7696INTERCHANGEABLE
SEAT,VALVE
A13183.001.156
5325-01-191-7346INTERCHANGEABLE
INSERT,SCREW THREAD
20316
4820-01-192-2900INTERCHANGEABLE
VALVE,SAFETY RELIEF
20316ES 91 SS
6515-01-306-5091INTERCHANGEABLE
SCREW,BONE
6240-01-419-7732INTERCHANGEABLE
LAMP,FLUORESCENT
7510-01-524-9728INTERCHANGEABLE
HOLDER,SOAPSTONE MARKER

Frequently Asked Questions

What is NSN 5120-01-349-1444?

NSN 5120-01-349-1444 is a Wrench,box and Open End,combinat, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-349-1444?

NSN 5120-01-349-1444 has 10 cross-referenced part numbers: 20316 (Apex Tool Group, Llc Dba Nicholson), B107.6 TY1 (General Services Administration Federal Supply Service), OEXM16B (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), OEXM16 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B107.100 (The American Society of Mechanical Engineers) and 5 more.

What NSN replaces 5120-01-349-1444?

There are 11 known substitutes for 5120-01-349-1444: 5940-00-144-2012, 5306-00-151-0418, 5310-00-187-1864 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20316?

Key specifications for 20316: Surface Treatment: CHROMIUM OVERALL; Wrenching Surface Shape: 12 POINT SECOND END INTERNAL; Nondefinitive Spec/std Data: 3 TYPE AND 1 CLASS AND B STYLE; Head Angle: 15.0 DEGREES NOMINAL. 11 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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