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Technical Data Sheet
PartsTable / COMPONENT / 70-2177
70-2177 ✓ 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

RECTIFIER,SEMICONDUCTOR DEVICE,U. Key specifications include special_features: FURNISHED WITH O-RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-101-2709, 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
70-2177
NSN: 4730-01-101-2709
FSC: 4730
CAGE: 3W359 — P AND W FOUNDRY, INC. (USA)
SPECIFICATIONS
special_featuresFURNISHED WITH O-RING
NSN4730-01-101-2709
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 70-2177 · 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)
SPECIAL FEATURESFURNISHED WITH O-RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
B19-17-14Interchangeable
interchangeable cross-reference
interchangeable
T955RV01Interchangeable
interchangeable cross-reference
interchangeable
SC3BA2FInterchangeable
interchangeable cross-reference
interchangeable
SA8931Interchangeable
interchangeable cross-reference
interchangeable
12296243Interchangeable
interchangeable cross-reference
interchangeable
A19-17-11-5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 70-2177?
70-2177 is a RECTIFIER,SEMICONDUCTOR DEVICE,U.
What parts can replace 70-2177?
There are 7 known substitutes for 70-2177: B19-17-14, T955RV01, SC3BA2F and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 70-2177?
70-2177 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-101-2709. 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