5599989-9 — REDUCER,AIR CONDITIONING-HEATING

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

5599989-9: REDUCER,AIR CONDITIONING-HEATING.

REDUCER,AIR CONDITIONING-HEATING. Key specifications include overall_width: 5.960 INCHES NOMINAL IN, overall_length: 12.880 INCHES NOMINAL IN, special_features: FLANGED CONNECTIONS, style_designator: REDUCING, fitting_overall_length: 2.260 INCHES NOMINAL IN, main_trunk_inlet_diameter: 10.880 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4520-01-278-9931, 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

5599989-9

NSN: 4520-01-278-9931
FSC: 4520 — Space and Water Heating Equipment
CAGE: 38597 — LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS (USA)

SPECIFICATIONS

overall_width	5.960 INCHES NOMINAL IN
overall_length	12.880 INCHES NOMINAL IN
special_features	FLANGED CONNECTIONS
style_designator	REDUCING
fitting_overall_length	2.260 INCHES NOMINAL IN
main_trunk_inlet_diameter	10.880 INCHES NOMINAL IN
main_trunk_reducing_outlet_diameter	6.000 INCHES NOMINAL IN
NSN	4520-01-278-9931

COMPONENT DIAGRAM

KEY FEATURES

•

STYLE DESIGNATOR: REDUCING

•

MAIN TRUNK INLET DIAMETER: 10.880 INCHES NOMINAL IN

•

FITTING OVERALL LENGTH: 2.260 INCHES NOMINAL IN

•

MAIN TRUNK REDUCING OUTLET DIAMETER: 6.000 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

STYLE DESIGNATOR	REDUCING
OVERALL LENGTH	12.880 INCHES NOMINAL IN
OVERALL WIDTH	5.960 INCHES NOMINAL IN
MAIN TRUNK INLET DIAMETER	10.880 INCHES NOMINAL IN
SPECIAL FEATURES	FLANGED CONNECTIONS
FITTING OVERALL LENGTH	2.260 INCHES NOMINAL IN
MAIN TRUNK REDUCING OUTLET DIAMETER	6.000 INCHES NOMINAL IN

OTHER ITEMS IN FSC 4520 — Space and Water Heating Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4520-00-000-0098 4520-00-000-0099 4520-00-001-1240 4520-00-001-3518 4520-00-001-3519 4520-00-001-6052 4520-00-001-6298 4520-00-001-7726

SUBSTITUTES & CROSS-REFERENCES 1

5599989Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 5599989-9?

5599989-9 is a REDUCER,AIR CONDITIONING-HEATING.

What parts can replace 5599989-9?

There is 1 known substitute for 5599989-9: 5599989. Substitute compatibility should be verified for your specific system.

What is the NSN for 5599989-9?

5599989-9 is cataloged in the U.S. Government catalog under NSN 4520-01-278-9931. This indicates validated use in U.S. government and defense supply chains.

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5599989-9 — REDUCER,AIR CONDITIONING-HEATING

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