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Technical Data Sheet
PartsTable / MRO / 174-136
174-136 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

The SPRING CONTACT ASSEMBLY is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-317-3877, 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
MRO→ MRO_GENERAL→ 174-136
NSN: 4730-00-317-3877
FSC: 4730
CAGE: 76462 — DELCO MORAINE DIV OF GENERAL MOTORS CORP (USA)
SPECIFICATIONS
Part Number174-136
NSN4730-00-317-3877
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 174-136 · 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
KEY FEATURES
•
THREAD QUANTITY PER INCH: 24 SECOND END
•
NOMINAL THREAD SIZE: 0.438 INCHES SECOND END IN
•
MATERIAL: COPPER ALLOY OVERALL
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.312 INCHES ALL ENDS IN
•
THREAD CLASS: 2A FIRST END A
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24 SECOND END
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
MATERIALCOPPER ALLOY OVERALL
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.312 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
THREAD QUANTITY PER INCH20 FIRST END
THREAD CLASS2A FIRST END A
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
CONNECTION STYLEINVERTED FLARE (TUBE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
2951Interchangeable
interchangeable cross-reference
interchangeable
711498-36Interchangeable
interchangeable cross-reference
interchangeable
442-0043-004Interchangeable
interchangeable cross-reference
interchangeable
AF2241Interchangeable
interchangeable cross-reference
interchangeable
A483CInterchangeable
interchangeable cross-reference
interchangeable
1024541AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 174-136?
174-136 is a SPRING CONTACT ASSEMBLY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 174-136?
There are 25 known substitutes for 174-136: 2951, 711498-36, 442-0043-004 and 22 more. Substitute compatibility should be verified for your specific system.
Is 174-136 still available?
174-136 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026