PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

376489-00Cup,locking

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-812-7857 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-812-7857 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-812-7857. Primary manufacturer part number: 376489-00.
Features
  • Cup,locking — FSC 4320
  • General Characteristics Item Description: NICKEL COPPER ALLOY,QQ-N-281,CLASS A; 0.500 IN. SIZE; MAX DIA 0.854 IN.,MIN DIA 0.531 IN.; W/2 0.096 IN. DIA DRILL HOLES,180 DEG APART IN
  • 6 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Div Epd
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Cup,locking, cataloged under National Stock Number 4320-00-812-7857, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-812-7857
Primary Part Number376489-00
Item NameCup,locking
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
General Characteristics Item DescriptionNICKEL COPPER ALLOY,QQ-N-281,CLASS A; 0.500 IN. SIZE; MAX DIA 0.854 IN.,MIN DIA 0.531 IN.; W/2 0.096 IN. DIA DRILL HOLES,180 DEG APART IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
2915-00-170-9148 INTERCHANGEABLE
Body and Stud Assembly
5133-00-227-5983 INTERCHANGEABLE
Drill,twist
3040-00-495-302310617 INTERCHANGEABLE
Gearshaft,spur
The Aeronautical Instrument and Radio Company Dba the Aeronautical Instrument and Radio Company Div the Aeronautical Instrument and
5950-00-648-4876 INTERCHANGEABLE
Coil,radio Frequency
5355-00-667-5989A-7600 INTERCHANGEABLE
Window,dial
L3 Technologies, Inc.
5355-01-059-033810617 INTERCHANGEABLE
Knob
Star Cases Llc Dba Zero Manufacturing
4820-01-451-381910617 INTERCHANGEABLE
Valve,rotary,selector
North American Controls Inc Dba North American Controls Inc
6525-01-571-3971453567012851 INTERCHANGEABLE
Module,optical Stator,computed T
Phillips Medical Systems North America Co
4320-01-657-2581 INTERCHANGEABLE
Locking Cup
5305-01-677-59851061-7 INTERCHANGEABLE
Screw,machine
Milton Industries, Inc
Cross-Reference Index
Part NumberManufacturer
17774P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SK-176489 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
17897P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
376489-00 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
10617 Rps-Fl, Inc. Dba Rps Inc (USA)
SK-176489 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
2915-00-170-9148INTERCHANGEABLE
BODY AND STUD ASSEMBLY
5133-00-227-5983INTERCHANGEABLE
DRILL,TWIST
3040-00-495-3023INTERCHANGEABLE
GEARSHAFT,SPUR
10617
5950-00-648-4876INTERCHANGEABLE
COIL,RADIO FREQUENCY
5355-00-667-5989INTERCHANGEABLE
WINDOW,DIAL
A-7600
5355-01-059-0338INTERCHANGEABLE
KNOB
10617
4820-01-451-3819INTERCHANGEABLE
VALVE,ROTARY,SELECTOR
10617
6525-01-571-3971INTERCHANGEABLE
MODULE,OPTICAL STATOR,COMPUTED T
453567012851
4320-01-657-2581INTERCHANGEABLE
LOCKING CUP
5305-01-677-5985INTERCHANGEABLE
SCREW,MACHINE
1061-7

Frequently Asked Questions

What is NSN 4320-00-812-7857?

NSN 4320-00-812-7857 is a Cup,locking, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-812-7857?

NSN 4320-00-812-7857 has 6 cross-referenced part numbers: 17774P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SK-176489 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 17897P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 376489-00 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 10617 (Rps-Fl, Inc. Dba Rps Inc) and 1 more.

What NSN replaces 4320-00-812-7857?

There are 10 known substitutes for 4320-00-812-7857: 2915-00-170-9148, 5133-00-227-5983, 3040-00-495-3023 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 376489-00?

Key specifications for 376489-00: General Characteristics Item Description: NICKEL COPPER ALLOY,QQ-N-281,CLASS A; 0.500 IN. SIZE; MAX DIA 0.854 IN.,MIN DIA 0.531 IN.; W/2 0.096 IN. DIA DRILL HOLES,180 DEG APART IN. 1 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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