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26373 — BRAKE BOOSTER ASSEMBLY,MASTER CY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

26373: BRAKE BOOSTER ASSEMBLY,MASTER CY.

BRAKE BOOSTER ASSEMBLY,MASTER CY. Key specifications include color_chip_number: 26372, gloss_designation: SEMIGLOSS, rated_drying_time: 2.00 HOURS NOMINAL, part_name_assigned_by_controlling_agency: POLYSILOXANE XLE-80 EPOXY SILOXANE, volatile_organic_compound_in_grams_per_liter: 150.00. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-153-8836, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
26373
NSN: 4820-00-153-8836
NIINs: 001538836, 002171105, 009703444, 011868765, 013327063, 014179522, 016743841
FSC: 4820 — Valves, Nonpowered
CAGE: 99473 — HAWKER PACIFIC AEROSPACE LANDING GEAR AND COMPONENTS MFG AND REPAIR (USA)
SPECIFICATIONS
color_chip_number26372
gloss_designationSEMIGLOSS
rated_drying_time2.00 HOURS NOMINAL
part_name_assigned_by_controlling_agencyPOLYSILOXANE XLE-80 EPOXY SILOXANE
volatile_organic_compound_in_grams_per_liter150.00
NSN4820-00-153-8836
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 26373 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLOW CONTROL DEVICE: POPPET
•
CONNECTION STYLE: FLARELESS ALL ENDS
•
MOUNTING POSITION: HORIZONTAL OR VERTICAL
•
MINIMUM OPERATING TEMP: -65.0 FAHRENHEIT DEGF
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
CONNECTION STYLEFLARELESS ALL ENDS
MOUNTING POSITIONHORIZONTAL OR VERTICAL
MINIMUM OPERATING TEMP-65.0 FAHRENHEIT DEGF
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.562 INCHES FIRST END IN
NOMINAL THREAD SIZE0.548 INCHES SECOND END IN
SUBSTITUTES & CROSS-REFERENCES 2
6-43937-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A3038-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 26373?
26373 is a BRAKE BOOSTER ASSEMBLY,MASTER CY.
What parts can replace 26373?
There are 2 known substitutes for 26373: 6-43937-3, A3038-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 26373?
26373 is cataloged in the U.S. Government catalog under NSN 4820-00-153-8836. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.