PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16979-001Wrench,battery Filler Cap

Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company · NSN 5120-00-618-5305 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-618-5305 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-618-5305. Primary manufacturer part number: 16979-001.
Features
  • Wrench,battery Filler Cap — FSC 5120
  • Material: PLASTIC OVERALL
  • Material Document and Classification: L-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: EXPANSION
  • Features Provided: NONSPARKING
  • Departure From Cited Document: AS MODIFIED BY MATERIAL
  • Wrenching Surface Shape: HEXAGON SINGLE END INTERNAL
  • Wrenching Surface Size: 0.724 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Plastic Overall construction
General Description

The Wrench,battery Filler Cap, cataloged under National Stock Number 5120-00-618-5305, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-618-5305
Primary Part Number16979-001
Item NameWrench,battery Filler Cap
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerMarathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
StatusCANCELLED
MaterialPLASTIC OVERALL
Material Document and ClassificationL-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorEXPANSION
Features ProvidedNONSPARKING
Departure From Cited DocumentAS MODIFIED BY MATERIAL
Wrenching Surface ShapeHEXAGON SINGLE END INTERNAL
Wrenching Surface Size0.724 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6605-00-001-551916979 INTERCHANGEABLE
Clamp Assembly
Honeywell International Inc. Dba Honeywell International
5815-00-126-42167023 INTERCHANGEABLE
Lever
Telemechanics Inc
5330-00-248-208215XG131000 INTERCHANGEABLE
Gasket
Garwood/feller Inc Garwood Winch Div
5120-00-590-2104702-3 INTERCHANGEABLE
Scales,pushpull
Ametek Inc.
3120-00-795-957819233 INTERCHANGEABLE
Bearing,washer,thrust
Napco International Llc Dba Napco International Inc
5940-00-853-36971012231-15 INTERCHANGEABLE
Terminal,lug
Lockheed Martin Corporation Div Rms - Mitchel Field
5950-01-019-5297986142-1 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon
2530-01-164-25284037875 INTERCHANGEABLE
Rotor,disc Brake
Chrysler Corp Service and Parts Opns
5330-01-380-92457023 INTERCHANGEABLE
Gasket
Sfc Adams, Inc. Dba Adams Sfc
4140-01-413-8961 INTERCHANGEABLE
Fan,centrifugal
Cross-Reference Index
Part NumberManufacturer
16979-001 PRIMARY Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company (USA)
7023 PRIMARY Huntington Partners, Inc. Dba Continental Tool & Mfg. (USA)
SM-C-115287 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
16979 PRIMARY Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company (USA)
Related Parts
6605-00-001-5519INTERCHANGEABLE
CLAMP ASSEMBLY
16979
5815-00-126-4216INTERCHANGEABLE
LEVER
7023
5330-00-248-2082INTERCHANGEABLE
GASKET
15XG131000
5120-00-590-2104INTERCHANGEABLE
SCALES,PUSHPULL
702-3
3120-00-795-9578INTERCHANGEABLE
BEARING,WASHER,THRUST
19233
5940-00-853-3697INTERCHANGEABLE
TERMINAL,LUG
1012231-15
5950-01-019-5297INTERCHANGEABLE
REACTOR
986142-1
2530-01-164-2528INTERCHANGEABLE
ROTOR,DISC BRAKE
4037875
5330-01-380-9245INTERCHANGEABLE
GASKET
7023
4140-01-413-8961INTERCHANGEABLE
FAN,CENTRIFUGAL
2510-01-529-3484INTERCHANGEABLE
VENT,PLUG
16979
5998-01-568-9208INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY

Frequently Asked Questions

What is NSN 5120-00-618-5305?

NSN 5120-00-618-5305 is a Wrench,battery Filler Cap, manufactured by Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-618-5305?

NSN 5120-00-618-5305 has 4 cross-referenced part numbers: 16979-001 (Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company), 7023 (Huntington Partners, Inc. Dba Continental Tool & Mfg.), SM-C-115287 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 16979 (Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company).

What NSN replaces 5120-00-618-5305?

There are 12 known substitutes for 5120-00-618-5305: 6605-00-001-5519, 5815-00-126-4216, 5330-00-248-2082 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16979-001?

Key specifications for 16979-001: Overall Length: 2.500 INCHES NOMINAL IN; Material: PLASTIC OVERALL; Material Document and Classification: L-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Style Designator: EXPANSION. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-618-5305 still in active supply?

NSN 5120-00-618-5305 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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