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AN737RM26 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include color: BLACK OVERALL, length: 0.188 INCHES NOMINAL SQUARE END IN, material: RUBBER OVERALL, cuff_type: GAUNTLET, nut_style: HEXAGON, body_style: STRAIGHT SHAPE, INTERNAL COUPLING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-9097, 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
AN737RM26
NSN: 4730-00-278-9097
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
colorBLACK OVERALL
length0.188 INCHES NOMINAL SQUARE END IN
materialRUBBER OVERALL
cuff_typeGAUNTLET
nut_styleHEXAGON
body_styleSTRAIGHT SHAPE, INTERNAL COUPLING
body_width1.500 INCHES NOMINAL IN
head_styleFLAT CHAMFER
loop_width1.38 INCHES NOMINAL IN
nut_height0.965 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
point_typeCONVENTIONAL
shell_typeSOLID
NSN4730-00-278-9097
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN737RM26 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
4730PL1989460Interchangeable
interchangeable cross-reference
interchangeable
WWD26-34Interchangeable
interchangeable cross-reference
interchangeable
10108437Interchangeable
interchangeable cross-reference
interchangeable
H90077A001ITEM18CInterchangeable
interchangeable cross-reference
interchangeable
6000087Interchangeable
interchangeable cross-reference
interchangeable
5D1026Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN737RM26?
AN737RM26 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace AN737RM26?
There are 6 known substitutes for AN737RM26: 4730PL1989460, WWD26-34, 10108437 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN737RM26?
AN737RM26 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-9097. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026