PartsTable
Technical Data Sheet
4H90309-105A ✓ 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

MANIFOLD,HYDRAULIC SYSTEM ACCESS. Key specifications include end_item_identification: C-5B ACFT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-181-9978, 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
4H90309-105A
NSN: 4730-01-181-9978
FSC: 4730
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
special_featuresACFT HYDRAULIC SYSTEMS;9.259 IN. DISTANCE IN LGTH BETWEEN MTG HOLES;FOUR 0.325 IN. DIA MTG HOLES;6.170 IN. MAX HT;PORTS PER AND 10057-8 AND 10050-6 IN
end_item_identificationC-5B ACFT
NSN4730-01-181-9978
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4H90309-105A · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONC-5B ACFT
SPECIAL FEATURESACFT HYDRAULIC SYSTEMS;9.259 IN. DISTANCE IN LGTH BETWEEN MTG HOLES;FOUR 0.325 IN. DIA MTG HOLES;6.170 IN. MAX HT;PORTS PER AND 10057-8 AND 10050-6 IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
60320P290Interchangeable
interchangeable cross-reference
interchangeable
55SD23Interchangeable
interchangeable cross-reference
interchangeable
2004AInterchangeable
interchangeable cross-reference
interchangeable
110-100Interchangeable
interchangeable cross-reference
interchangeable
7141572Interchangeable
interchangeable cross-reference
interchangeable
ME-176Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4H90309-105A?
4H90309-105A is a MANIFOLD,HYDRAULIC SYSTEM ACCESS.
What parts can replace 4H90309-105A?
There are 20 known substitutes for 4H90309-105A: 60320P290, 55SD23, 2004A and 17 more. Substitute compatibility should be verified for your specific system.
Is 4H90309-105A still available?
4H90309-105A is currently cancelled.
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