PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.100Wrench,open End Box

The American Society of Mechanical Engineers · NSN 5120-00-269-7972 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-269-7972 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-269-7972. Primary manufacturer part number: B107.100.
Features
  • Wrench,open End Box — FSC 5120
  • Surface Treatment: NICKEL AND CHROMIUM OVERALL
  • Wrenching Surface Size: 1.000 INCHES NOMINAL SECOND END IN
  • Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL
  • Small End Head Thickness: 0.563 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS AND A STYLE AND B DESIGN
  • Specification/standard Data: 0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End Box, cataloged under National Stock Number 5120-00-269-7972, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 11 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
NSN5120-00-269-7972
Primary Part NumberB107.100
Item NameWrench,open End Box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Surface TreatmentNICKEL AND CHROMIUM OVERALL
Wrenching Surface Size1.000 INCHES NOMINAL SECOND END IN
Wrenching Surface Shape12 POINT BOTH ENDS INTERNAL
Small End Head Thickness0.563 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS AND A STYLE AND B DESIGN
Specification/standard Data0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Size0.750 INCHES NOMINAL FIRST END IN
Large End Head Thickness0.690 INCHES MAXIMUM IN
Style DesignatorFLARE NUT DOUBLE END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5940-00-143-4777MS25036-157 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5120-00-269-7973XFN-2836 INTERCHANGEABLE
Wrench,open End Box
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
3030-00-294-98401070289 INTERCHANGEABLE
Belt,v
Chrysler Realty Company Llc Dba Daimler Chrysler
3040-00-310-3857 INTERCHANGEABLE
Gearshaft,spur
6145-00-397-30462814/5 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
5355-00-568-1730231-1030P1 INTERCHANGEABLE
Knob
Raytheon Company Dba Raytheon Co
2915-00-689-353028145 INTERCHANGEABLE
Impeller,pump,centrifugal
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
4130-00-777-3596A903-1111 INTERCHANGEABLE
Cooling Coil,air,duct Type
Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters
5950-00-809-4535 INTERCHANGEABLE
Reactor
2990-00-830-653928145 INTERCHANGEABLE
Cap Assembly,protective,muffler-
Stewart & Stevenson Power Products Llc
Cross-Reference Index
Part NumberManufacturer
B107.100 The American Society of Mechanical Engineers (USA)
AS4167 TY1CL2STADEB General Services Administration Federal Supply Service (USA)
28-145 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
RHX2432 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS4167 Sae International Dba Sae International (USA)
RF54 Utica Tool Co Inc (USA)
28-145 Apex Tool Group, Llc Dba Nicholson (USA)
RHX2432B Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS4167 Society of Automotive Engineers Inc (USA)
28-145 Armstrong Bros Tool Co (USA)
XFN-2432 Williams J H Industrial Products Inc (USA)
RHX2432 Sna Germany Gmbh (DEU)
22354 Utica Tool Co Inc (USA)
Related Parts
5940-00-143-4777INTERCHANGEABLE
TERMINAL,LUG
MS25036-157
5120-00-269-7973INTERCHANGEABLE
WRENCH,OPEN END BOX
XFN-2836
3030-00-294-9840INTERCHANGEABLE
BELT,V
1070289
3040-00-310-3857INTERCHANGEABLE
GEARSHAFT,SPUR
6145-00-397-3046INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
2814/5
5355-00-568-1730INTERCHANGEABLE
KNOB
231-1030P1
2915-00-689-3530INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
28145
4130-00-777-3596INTERCHANGEABLE
COOLING COIL,AIR,DUCT TYPE
A903-1111
5950-00-809-4535INTERCHANGEABLE
REACTOR
2990-00-830-6539INTERCHANGEABLE
CAP ASSEMBLY,PROTECTIVE,MUFFLER-
28145
1680-00-867-5890INTERCHANGEABLE
BAIL,LIFTING
7345028
5930-00-887-9984INTERCHANGEABLE
SWITCH,ROTARY

Frequently Asked Questions

What is NSN 5120-00-269-7972?

NSN 5120-00-269-7972 is a Wrench,open End Box, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-269-7972?

NSN 5120-00-269-7972 has 13 cross-referenced part numbers: B107.100 (The American Society of Mechanical Engineers), AS4167 TY1CL2STADEB (General Services Administration Federal Supply Service), 28-145 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), RHX2432 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AS4167 (Sae International Dba Sae International) and 8 more.

What NSN replaces 5120-00-269-7972?

There are 12 known substitutes for 5120-00-269-7972: 5940-00-143-4777, 5120-00-269-7973, 3030-00-294-9840 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.100?

Key specifications for B107.100: Overall Length: 7.620 INCHES MINIMUM IN; Surface Treatment: NICKEL AND CHROMIUM OVERALL; Special Features: 15 DEG OFFSET BOTH ENDS; Wrenching Surface Size: 1.000 INCHES NOMINAL SECOND END IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-269-7972 still in active supply?

NSN 5120-00-269-7972 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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