PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

255265-4Sleeve,shaft,pump

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-126-5953 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-126-5953 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-126-5953. Primary manufacturer part number: 255265-4.
Features
  • Sleeve,shaft,pump — FSC 4320
  • Keyway Dimension: 0.1250 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
  • Body Outside Diameter: 1.6870 INCHES NOMINAL IN
  • Body Inside Diameter: 1.0000 INCHES NOMINAL IN
  • Material: NICKEL ALLOY OVERALL
  • Corner Shape: CHAMFERED INSIDE LEFT CORNER
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Nickel Alloy Overall construction
General Description

The Sleeve,shaft,pump, cataloged under National Stock Number 4320-00-126-5953, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-126-5953
Primary Part Number255265-4
Item NameSleeve,shaft,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Keyway Dimension0.1250 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Body Outside Diameter1.6870 INCHES NOMINAL IN
Body Inside Diameter1.0000 INCHES NOMINAL IN
MaterialNICKEL ALLOY OVERALL
Corner ShapeCHAMFERED INSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Keyway Dimension1.6875 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
Corner ShapeSQUARE INSIDE RIGHT CORNER
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-272-992082313 INTERCHANGEABLE
Ammeter
Stewart-Warner Corporation
6625-00-573-567911005 INTERCHANGEABLE
Meter,electrical Frequency
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5220-00-603-54332552654 INTERCHANGEABLE
Gage,profile
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
Cross-Reference Index
Part NumberManufacturer
255265-4 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
SL5265PC7 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
369P PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
255265-4 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL5265PC7 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
369P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
Related Parts
6625-00-272-9920INTERCHANGEABLE
AMMETER
82313
6625-00-573-5679INTERCHANGEABLE
METER,ELECTRICAL FREQUENCY
11005
5220-00-603-5433INTERCHANGEABLE
GAGE,PROFILE
2552654

Frequently Asked Questions

What is NSN 4320-00-126-5953?

NSN 4320-00-126-5953 is a Sleeve,shaft,pump, 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 4320-00-126-5953?

NSN 4320-00-126-5953 has 6 cross-referenced part numbers: 255265-4 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL5265PC7 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 369P (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 255265-4 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL5265PC7 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 1 more.

What NSN replaces 4320-00-126-5953?

There are 3 known substitutes for 4320-00-126-5953: 6625-00-272-9920, 6625-00-573-5679, 5220-00-603-5433. Verify interchangeability with system specifications before substitution.

What are the specifications of 255265-4?

Key specifications for 255265-4: Keyway Dimension: 0.1250 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN; Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Body Outside Diameter: 1.6870 INCHES NOMINAL IN; Overall Length: 3.0000 INCHES NOMINAL IN. 12 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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