PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1W30966Key,socket Head Screw

Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions · NSN 5120-00-240-5274 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-240-5274 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-240-5274. Primary manufacturer part number: 1W30966.
Features
  • Key,socket Head Screw — FSC 5120
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Material: STEEL OVERALL
  • Long Arm Length: 3.656 INCHES MINIMUM AND 3.844 INCHES MAXIMUM IN
  • Wrenching Surface Size: 0.313 INCHES NOMINAL BOTH ENDS IN
  • Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
  • Features Provided: SHORT SERIES
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 5120-00-240-5274, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 23 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
NSN5120-00-240-5274
Primary Part Number1W30966
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions
StatusCANCELLED
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
MaterialSTEEL OVERALL
Long Arm Length3.656 INCHES MINIMUM AND 3.844 INCHES MAXIMUM IN
Wrenching Surface Size0.313 INCHES NOMINAL BOTH ENDS IN
Specification/standard Data05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Features ProvidedSHORT SERIES
Style DesignatorL-HANDLE
Short Arm Length1.156 INCHES MINIMUM AND 1.344 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5977-00-143-668281500010001 INTERCHANGEABLE
Holder,electrical Contact Brush
Acron Aviation, Inc.
5930-00-214-1309B109765 INTERCHANGEABLE
Switch,rotary
Lockheed Martin Corp
2925-00-328-2062755224 INTERCHANGEABLE
Collar,waterproof,s
Inland Mfg Div of General Motors Corp
2990-00-377-520768013 INTERCHANGEABLE
Link,governor Overr
Cummins Inc.
2510-00-460-7031AW10 INTERCHANGEABLE
Shock Absorber,direct Action
Ford Motor Craft
6625-00-689-5302431-102 INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
5133-00-865-422988816 INTERCHANGEABLE
Bit,spade,wood Boring
Stanley Tools Div of Stanley Works
5999-00-924-8547109-765 INTERCHANGEABLE
Contact,electrical
Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated
2910-00-981-4858ADL162TP649 INTERCHANGEABLE
Spray Tip,nozzle,fuel Injector
Ambac International Corporation Div Ambac International
5985-01-032-3005SM-A-776939-1 INTERCHANGEABLE
Switch,radio Frequency Transmiss
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
1W30966 Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions (USA)
109765 Optomechanisms Co of America Inc (USA)
B01185 Haynes Corporation (USA)
024-0065-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
10424481 Nimikkeistokeskus Ncb Finland (FIN)
1940721 Naval Ship Systems Command (USA)
88315-0 Clausing Corp (USA)
B18.3 The American Society of Mechanical Engineers (USA)
NAF39436-5 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
GGG-K-275 TY1CL1 General Services Administration Federal Supply Service (USA)
7596961 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
75-5224 Thermo King Corporation Dba Phoenix Global Distirbution. (USA)
AW10 Sna Germany Gmbh (DEU)
25108 Wico-Prestolite Co the Div of Eltra Corp (USA)
68013 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
A-A-2473 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
024-0065-000 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
648945F General Motors Corp (USA)
1112876 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
040-00201 Grove Valve Operations (USA)
Related Parts
5977-00-143-6682INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
81500010001
5930-00-214-1309INTERCHANGEABLE
SWITCH,ROTARY
B109765
2925-00-328-2062INTERCHANGEABLE
COLLAR,WATERPROOF,S
755224
2990-00-377-5207INTERCHANGEABLE
LINK,GOVERNOR OVERR
68013
2510-00-460-7031INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
AW10
6625-00-689-5302INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
431-102
5133-00-865-4229INTERCHANGEABLE
BIT,SPADE,WOOD BORING
88816
5999-00-924-8547INTERCHANGEABLE
CONTACT,ELECTRICAL
109-765
2910-00-981-4858INTERCHANGEABLE
SPRAY TIP,NOZZLE,FUEL INJECTOR
ADL162TP649
5985-01-032-3005INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
SM-A-776939-1
5310-01-103-7774INTERCHANGEABLE
NUT,PLAIN,HEXAGON
25-108
5120-01-162-0319INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
57028

Frequently Asked Questions

What is NSN 5120-00-240-5274?

NSN 5120-00-240-5274 is a Key,socket Head Screw, manufactured by Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-240-5274?

NSN 5120-00-240-5274 has 24 cross-referenced part numbers: 1W30966 (Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions), 109765 (Optomechanisms Co of America Inc), B01185 (Haynes Corporation), 024-0065-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 10424481 (Nimikkeistokeskus Ncb Finland) and 19 more.

What NSN replaces 5120-00-240-5274?

There are 12 known substitutes for 5120-00-240-5274: 5977-00-143-6682, 5930-00-214-1309, 2925-00-328-2062 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1W30966?

Key specifications for 1W30966: Overall Length: 3.967 INCHES MINIMUM AND 4.157 INCHES MAXIMUM IN; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL; Material: STEEL OVERALL; Long Arm Length: 3.656 INCHES MINIMUM AND 3.844 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-240-5274 still in active supply?

NSN 5120-00-240-5274 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.
PartsTable Design LLC · partstable.com