PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8710A64-0157Key,socket Head Screw

Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh · NSN 5120-01-228-0721 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-228-0721 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-228-0721. Primary manufacturer part number: 8710A64-0157.
Features
  • Key,socket Head Screw — FSC 5120
  • Long Arm Length: 2.656 INCHES MINIMUM AND 2.844 INCHES MAXIMUM IN
  • Short Arm Length: 0.844 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
  • Wrenching Surface Size: 0.188 INCHES NOMINAL SINGLE END IN
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL
  • 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 5120-01-228-0721, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5120-01-228-0721
Primary Part Number8710A64-0157
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerCbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh
StatusACTIVE
Long Arm Length2.656 INCHES MINIMUM AND 2.844 INCHES MAXIMUM IN
Short Arm Length0.844 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
Wrenching Surface Size0.188 INCHES NOMINAL SINGLE END IN
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Wrenching Surface ShapeHEXAGON SINGLE END EXTERNAL
Style DesignatorL-HANDLE
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-240-530013810 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
8125-00-422-8007 INTERCHANGEABLE
Bottle,screw Cap
5360-00-813-4410680-10 INTERCHANGEABLE
Spring,helical,compression
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
5340-00-908-451037852-1 INTERCHANGEABLE
Bracket,angle
Alamo Aircraft, Ltd.
5950-00-972-9303 INTERCHANGEABLE
Transformer,power
9390-01-098-6448 INTERCHANGEABLE
Tape,reflective
5120-01-128-0177 INTERCHANGEABLE
Pliers,retaining Ring
7510-01-389-2257680-10 INTERCHANGEABLE
Tab,signal
Hinkle Office Supply Co
5895-01-460-1226 INTERCHANGEABLE
Monitor,radio Frequency
7490-01-508-632268010 INTERCHANGEABLE
Printing Machine,label
Dymo Corporation
Cross-Reference Index
Part NumberManufacturer
8710A64-0157 Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh (USA)
68010 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
GGG-K-00275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5120-00-240-5300INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
13810
8125-00-422-8007INTERCHANGEABLE
BOTTLE,SCREW CAP
5360-00-813-4410INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
680-10
5340-00-908-4510INTERCHANGEABLE
BRACKET,ANGLE
37852-1
5950-00-972-9303INTERCHANGEABLE
TRANSFORMER,POWER
9390-01-098-6448INTERCHANGEABLE
TAPE,REFLECTIVE
5120-01-128-0177INTERCHANGEABLE
PLIERS,RETAINING RING
7510-01-389-2257INTERCHANGEABLE
TAB,SIGNAL
680-10
5895-01-460-1226INTERCHANGEABLE
MONITOR,RADIO FREQUENCY
7490-01-508-6322INTERCHANGEABLE
PRINTING MACHINE,LABEL
68010
5120-01-569-8200INTERCHANGEABLE
SCREWDRIVER BIT SET AND HANDLE
0-68-010
5120-01-681-5966INTERCHANGEABLE
DIE,CRIMPING TOOL
68010

Frequently Asked Questions

What is NSN 5120-01-228-0721?

NSN 5120-01-228-0721 is a Key,socket Head Screw, manufactured by Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-228-0721?

NSN 5120-01-228-0721 has 3 cross-referenced part numbers: 8710A64-0157 (Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh), 68010 (Allen Mfg Co Sub of Chicago Pneumatic Tool Co), GGG-K-00275 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5120-01-228-0721?

There are 12 known substitutes for 5120-01-228-0721: 5120-00-240-5300, 8125-00-422-8007, 5360-00-813-4410 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8710A64-0157?

Key specifications for 8710A64-0157: Overall Length: 2.842 INCHES MINIMUM AND 3.032 INCHES MAXIMUM IN; Long Arm Length: 2.656 INCHES MINIMUM AND 2.844 INCHES MAXIMUM IN; Short Arm Length: 0.844 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN; Wrenching Surface Size: 0.188 INCHES NOMINAL SINGLE END IN. 9 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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