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MIL-H-52544 — CASE,COMBUSTION CHAMBER,AIRCRAFT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

MIL-H-52544: CASE,COMBUSTION CHAMBER,AIRCRAFT.

CASE,COMBUSTION CHAMBER,AIRCRAFT. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER CHLOROPRENE CLASS CR TUBE, temp_rating: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF, exterior_color: NATURAL, vacuum_in_torr: 127.0, inside_diameter: 1.203 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN, outside_diameter: 3.750 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-181-8627, 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
MIL-H-52544
NSN: 4720-00-181-8627
NIINs: 001818627, 004694920, 004694921, 004696598
FSC: 4720 — Hose and Flexible Tubing
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER CHLOROPRENE CLASS CR TUBE
temp_rating-40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
exterior_colorNATURAL
vacuum_in_torr127.0
inside_diameter1.203 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
outside_diameter3.750 INCHES MAXIMUM IN
operating_pressure55.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
inside_surface_conditionSMOOTH
hydrostatic_test_pressure300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
cross-sectional_shape_styleROUND
measuring_method_and_length3.000 INCHES NOMINAL OVERALL IN
NSN4720-00-181-8627
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: MIL-H-52544 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MEASURING METHOD AND LENGTH: 17.250 INCHES NOMINAL OVERALL IN
•
TEMP RATING: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MINIMUM INSIDE BENDING RADIUS: 14.000 INCHES IN
•
VACUUM IN TORR: 127.0
•
LAYER COMPOSITION AND LOCATION: OUTER LAYER MOLDED RUBBER, CHLOROPRENE
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 3.250 INCHES MAXIMUM IN
•
OPERATING PRESSURE: 62.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH17.250 INCHES NOMINAL OVERALL IN
TEMP RATING-40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
MINIMUM INSIDE BENDING RADIUS14.000 INCHES IN
VACUUM IN TORR127.0
LAYER COMPOSITION AND LOCATIONOUTER LAYER MOLDED RUBBER, CHLOROPRENE
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER3.250 INCHES MAXIMUM IN
OPERATING PRESSURE62.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SPECIFICATION/STANDARD DATA81349--1L-H-52544 GOVERNMENT SPECIFICATION
INSIDE DIAMETER2.438 INCHES MINIMUM AND 2.562 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
484608Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
13213E9766-9Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
484603Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MIL-H-52544?
MIL-H-52544 is a CASE,COMBUSTION CHAMBER,AIRCRAFT.
What parts can replace MIL-H-52544?
There are 3 known substitutes for MIL-H-52544: 484608, 13213E9766-9, 484603. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-H-52544?
MIL-H-52544 is cataloged in the U.S. Government catalog under NSN 4720-00-181-8627. 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.