PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KIT-4721Parts Kit,driving Axle Different

Meritor Heavy Vehicle Systems, Llc · NSN 2520-01-391-0775 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-01-391-0775 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-391-0775. Primary manufacturer part number: KIT-4721.
Features
  • Parts Kit,driving Axle Different — FSC 2520
  • Supply Items and Quantities: DRIVE PINION 1, RING GEAR 1, NUT-DRIVE PINION 1, WASHER 16, CAPSCREW 16, THREAD LOCKING LIQUID 1
  • Component Quantity: 36
  • 4 verified cross-references
  • Primary manufacturer: Meritor Heavy Vehicle Systems, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Parts Kit,driving Axle Different, cataloged under National Stock Number 2520-01-391-0775, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 2 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
NSN2520-01-391-0775
Primary Part NumberKIT-4721
Item NameParts Kit,driving Axle Different
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerMeritor Heavy Vehicle Systems, Llc
StatusCANCELLED
Supply Items and QuantitiesDRIVE PINION 1, RING GEAR 1, NUT-DRIVE PINION 1, WASHER 16, CAPSCREW 16, THREAD LOCKING LIQUID 1
Component Quantity36
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6515-00-113-53584721 INTERCHANGEABLE
Intravenous Injection Set
Abbott Laboratories Inc. Div Hospital Products Division
2920-00-172-56281891918 INTERCHANGEABLE
Winding,motor Field
Delco Remy America Inc
3020-00-267-1878120-0L INTERCHANGEABLE
Link,roller Chain
Union Chain Div of Ust Inc
9540-00-542-2753 INTERCHANGEABLE
Beam,structural
6625-00-605-7569472-1 INTERCHANGEABLE
Test Set,battery
Q V S Inc
5330-00-641-11594721 INTERCHANGEABLE
Gasket
Ktm 2 Llc Dba Arrow Safety Device Company
5360-00-790-26914721 INTERCHANGEABLE
Spring,helical,compression
Coffin Turbo Pump Inc
4730-01-148-9438 INTERCHANGEABLE
Bushing,reducer
5310-01-193-76354721 INTERCHANGEABLE
Nut,plain,hexagon
Husco International Inc
5935-01-433-2756 INTERCHANGEABLE
Connector,plug,electrical
Cross-Reference Index
Part NumberManufacturer
KIT-4721 Amz Alabama Inc. (USA)
KIT-4721 Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA)
4721 Meritor Heavy Vehicle Systems, Llc (USA)
KIT-4721 PRIMARY Meritor Heavy Vehicle Systems, Llc (USA)
Related Parts
6515-00-113-5358INTERCHANGEABLE
INTRAVENOUS INJECTION SET
4721
2920-00-172-5628INTERCHANGEABLE
WINDING,MOTOR FIELD
1891918
3020-00-267-1878INTERCHANGEABLE
LINK,ROLLER CHAIN
120-0L
9540-00-542-2753INTERCHANGEABLE
BEAM,STRUCTURAL
6625-00-605-7569INTERCHANGEABLE
TEST SET,BATTERY
472-1
5330-00-641-1159INTERCHANGEABLE
GASKET
4721
5360-00-790-2691INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4721
4730-01-148-9438INTERCHANGEABLE
BUSHING,REDUCER
5310-01-193-7635INTERCHANGEABLE
NUT,PLAIN,HEXAGON
4721
5935-01-433-2756INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
4810-01-515-0514INTERCHANGEABLE
VALVE,BUTTERFLY
4" 815W-113600TT
5340-01-597-5619INTERCHANGEABLE
CLAMP,BLOCK
94-00012

Frequently Asked Questions

What is NSN 2520-01-391-0775?

NSN 2520-01-391-0775 is a Parts Kit,driving Axle Different, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 2520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2520-01-391-0775?

NSN 2520-01-391-0775 has 4 cross-referenced part numbers: KIT-4721 (Amz Alabama Inc.), KIT-4721 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 4721 (Meritor Heavy Vehicle Systems, Llc), KIT-4721 (Meritor Heavy Vehicle Systems, Llc).

What NSN replaces 2520-01-391-0775?

There are 12 known substitutes for 2520-01-391-0775: 6515-00-113-5358, 2920-00-172-5628, 3020-00-267-1878 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of KIT-4721?

Key specifications for KIT-4721: Supply Items and Quantities: DRIVE PINION 1, RING GEAR 1, NUT-DRIVE PINION 1, WASHER 16, CAPSCREW 16, THREAD LOCKING LIQUID 1; End Item Identification: 2320-01-354-3382; Component Quantity: 36. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2520-01-391-0775 still in active supply?

NSN 2520-01-391-0775 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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