PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21125-1003-1Alignment,rod

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-415-3851 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-415-3851 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-415-3851. Primary manufacturer part number: 21125-1003-1.
Features
  • Alignment,rod — FSC 4820
  • Material: STEEL CORROSION RESISTING
  • 3 verified cross-references
  • Primary manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Alignment,rod, cataloged under National Stock Number 4820-01-415-3851, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-415-3851
Primary Part Number21125-1003-1
Item NameAlignment,rod
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-006-817221125 INTERCHANGEABLE
Nut,plain,hexagon
Industrial Technologies and Services Llc
4920-01-019-99433-7019 INTERCHANGEABLE
Barrel,pump,valve
Chapin R E Mfg Works Inc
5310-01-212-601321125 INTERCHANGEABLE
Nut Check
Parker Hannifin Corporation Div Hydraulic Systems Division
2815-01-265-31984023378 INTERCHANGEABLE
Valve,poppet,engine
Agco Corp Parts Opn
4320-01-408-7254D-5081-65-2482 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Buffaloes Fire Pump Inc. Dba R B Pump Co
4810-01-414-806021125-002 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-415-735221125-1001-1 INTERCHANGEABLE
Plunger,actuator
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21125-1003-1 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21125 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21125-13 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
5310-00-006-8172INTERCHANGEABLE
NUT,PLAIN,HEXAGON
21125
4920-01-019-9943INTERCHANGEABLE
BARREL,PUMP,VALVE
3-7019
5310-01-212-6013INTERCHANGEABLE
NUT CHECK
21125
2815-01-265-3198INTERCHANGEABLE
VALVE,POPPET,ENGINE
4023378
4320-01-408-7254INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
D-5081-65-2482
4810-01-414-8060INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21125-002
4810-01-415-7352INTERCHANGEABLE
PLUNGER,ACTUATOR
21125-1001-1

Frequently Asked Questions

What is NSN 4820-01-415-3851?

NSN 4820-01-415-3851 is a Alignment,rod, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-415-3851?

NSN 4820-01-415-3851 has 3 cross-referenced part numbers: 21125-1003-1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21125 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21125-13 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4820-01-415-3851?

There are 7 known substitutes for 4820-01-415-3851: 5310-00-006-8172, 4920-01-019-9943, 5310-01-212-6013 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21125-1003-1?

Key specifications for 21125-1003-1: Material: STEEL CORROSION RESISTING; End Item Identification: SEAWOLF CLASS SSN. 2 total characteristics are documented in the Federal Logistics Information System.

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