PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A503Puller,mechanical

Weil Pump Co Inc · NSN 5120-00-913-4378 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-913-4378 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-913-4378. Primary manufacturer part number: A503.
Features
  • Puller,mechanical — FSC 5120
  • 2 verified cross-references
  • Primary manufacturer: Weil Pump Co Inc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Puller,mechanical, cataloged under National Stock Number 5120-00-913-4378, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Weil Pump Co Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePuller,mechanical
FSC / FSG5120 — No Item Name Available (FSG 51)
ManufacturersWeil Pump Co Inc (CAGE 64392); General Services Administration Federal Supply Service (CAGE 80244)
Technical Specifications
ParameterValue
NSN5120-00-913-4378
Primary Part NumberA503
Item NamePuller,mechanical
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerWeil Pump Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5905-00-856-68201049283 INTERCHANGEABLE
Resistor,thermal
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
5306-01-297-680212576929 INTERCHANGEABLE
Bolt,externally Relieved Body
Army, United States Department of the Dba Watervliet Arsenal Div Business Development
5330-01-321-3738A-503 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Taylor Made Environmental
7520-01-424-48457520-01-424-4845 INTERCHANGEABLE
Easel,display and Training
National Industries for the Blind
1610-01-551-1922A50-3 INTERCHANGEABLE
Cone,rear,adapter Assembly
Hartzell Propeller Llc
Cross-Reference Index
Part NumberManufacturer
A503 PRIMARY Weil Pump Co Inc (USA)
5120-913-4378 PRIMARY General Services Administration Federal Supply Service (USA)
Related Parts
5905-00-856-6820INTERCHANGEABLE
RESISTOR,THERMAL
1049283
5306-01-297-6802INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
12576929
5330-01-321-3738INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
A-503
7520-01-424-4845INTERCHANGEABLE
EASEL,DISPLAY AND TRAINING
7520-01-424-4845
1610-01-551-1922INTERCHANGEABLE
CONE,REAR,ADAPTER ASSEMBLY
A50-3

Frequently Asked Questions

What is NSN 5120-00-913-4378?

NSN 5120-00-913-4378 is a Puller,mechanical, manufactured by Weil Pump Co Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-913-4378?

NSN 5120-00-913-4378 has 2 cross-referenced part numbers: A503 (Weil Pump Co Inc), 5120-913-4378 (General Services Administration Federal Supply Service).

What NSN replaces 5120-00-913-4378?

There are 5 known substitutes for 5120-00-913-4378: 5905-00-856-6820, 5306-01-297-6802, 5330-01-321-3738 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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