PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12288Key,socket Head Screw

Bondhus Corp · NSN 5120-01-428-8027 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-428-8027 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-428-8027. Primary manufacturer part number: 12288.
Features
  • Key,socket Head Screw — FSC 5120
  • Wrenching Surface Size: 19.0 MILLIMETERS NOMINAL BOTH ENDS MM
  • Specification/standard Data: 05047-ASME B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Features Provided: SHORT SERIES
  • Style Designator: L-HANDLE
  • Surface Treatment: ZINC OVERALL
  • Material: STEEL OVERALL
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 5120-01-428-8027, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Bondhus Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 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
NSN5120-01-428-8027
Primary Part Number12288
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerBondhus Corp
StatusCANCELLED
Wrenching Surface Size19.0 MILLIMETERS NOMINAL BOTH ENDS MM
Specification/standard Data05047-ASME B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Features ProvidedSHORT SERIES
Style DesignatorL-HANDLE
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5305-00-225-384092756 INTERCHANGEABLE
Screw,cap,hexagon Head
Briggs and Stratton Corp
5133-00-228-1370 INTERCHANGEABLE
Drill,twist
5310-00-791-943712288 INTERCHANGEABLE
Nut,plain,hexagon
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5305-01-019-241912288 INTERCHANGEABLE
Screw,cap,socket Head
Raytheon Co ESD Long Island Div
6130-01-141-2372 INTERCHANGEABLE
Charger,battery
4820-01-331-3580 INTERCHANGEABLE
Parts Kit,valve
5310-01-334-0439 INTERCHANGEABLE
Nut,self-Locking,round
6525-01-574-5489500-0181-02 INTERCHANGEABLE
Brush,back Assembly,computed Rad
Icrco, Inc.
5930-01-626-682812288 INTERCHANGEABLE
Switch,electronic
Gaylord Marine Services, Inc.
Cross-Reference Index
Part NumberManufacturer
12288 PRIMARY Bondhus Corp (USA)
ZLW0284-14 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AWM19D Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AWM19C Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B18.3.2 The American Society of Mechanical Engineers (USA)
ZHVY0218-14 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
5305-00-225-3840INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
92756
5133-00-228-1370INTERCHANGEABLE
DRILL,TWIST
5310-00-791-9437INTERCHANGEABLE
NUT,PLAIN,HEXAGON
12288
5305-01-019-2419INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
12288
6130-01-141-2372INTERCHANGEABLE
CHARGER,BATTERY
4820-01-331-3580INTERCHANGEABLE
PARTS KIT,VALVE
5310-01-334-0439INTERCHANGEABLE
NUT,SELF-LOCKING,ROUND
6525-01-574-5489INTERCHANGEABLE
BRUSH,BACK ASSEMBLY,COMPUTED RAD
500-0181-02
5930-01-626-6828INTERCHANGEABLE
SWITCH,ELECTRONIC
12288

Frequently Asked Questions

What is NSN 5120-01-428-8027?

NSN 5120-01-428-8027 is a Key,socket Head Screw, manufactured by Bondhus Corp, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-428-8027?

NSN 5120-01-428-8027 has 6 cross-referenced part numbers: 12288 (Bondhus Corp), ZLW0284-14 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AWM19D (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AWM19C (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B18.3.2 (The American Society of Mechanical Engineers) and 1 more.

What NSN replaces 5120-01-428-8027?

There are 9 known substitutes for 5120-01-428-8027: 5305-00-225-3840, 5133-00-228-1370, 5310-00-791-9437 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12288?

Key specifications for 12288: Overall Length: 193.6 MILLIMETERS NOMINAL MM; Wrenching Surface Size: 19.0 MILLIMETERS NOMINAL BOTH ENDS MM; Specification/standard Data: 05047-ASME B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-428-8027 still in active supply?

NSN 5120-01-428-8027 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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