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Technical Data Sheet
PartsTable / COMPONENT / 4276-3
4276-3 ✓ Verified by PartsTable
Lindy · 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

The MICROCIRCUIT,DIGITAL is a Lindy industrial component. Key specifications include material: STEEL OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: S70B-2 SEAHAWK HELICOPTER, style_designator: PLAIN, surface_treatment: CADMIUM OUTSIDE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-883-1933, 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
4276-3
NSN: 4730-00-883-1933
FSC: 4730
CAGE: 95879 — STEWART-WARNER ALEMITE CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresS70B-2 SEAHAWK HELICOPTER
style_designatorPLAIN
surface_treatmentCADMIUM OUTSIDE
nominal_thread_size0.125 INCHES ALL ENDS IN
nominal_overall_length0.812 INCHES IN
thread_series_designatorNPTF ALL ENDS
nominal_pipe_size_accommodated0.125 INCHES ALL ENDS IN
NSN4730-00-883-1933
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4276-3 · Lindy ⚠ 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 SERIES DESIGNATOR: NPTF ALL ENDS
•
MATERIAL: STEEL OVERALL
•
NOMINAL THREAD SIZE: 0.125 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: PLAIN
•
NOMINAL OVERALL LENGTH: 0.812 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.125 INCHES ALL ENDS IN
•
SURFACE TREATMENT: CADMIUM OUTSIDE
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORNPTF ALL ENDS
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
STYLE DESIGNATORPLAIN
NOMINAL OVERALL LENGTH0.812 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED0.125 INCHES ALL ENDS IN
SURFACE TREATMENTCADMIUM OUTSIDE
SURFACE TREATMENTCADMIUM INSIDE
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
42763Interchangeable
interchangeable cross-reference
interchangeable
ROM/PROM FAMILY 008Interchangeable
interchangeable cross-reference
interchangeable
722912-51Interchangeable
interchangeable cross-reference
interchangeable
70209-22918-101Interchangeable
interchangeable cross-reference
interchangeable
70209-22918-102Interchangeable
interchangeable cross-reference
interchangeable
7611996Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4276-3?
4276-3 is a MICROCIRCUIT,DIGITAL manufactured by Lindy.
What parts can replace 4276-3?
There are 6 known substitutes for 4276-3: 42763, ROM/PROM FAMILY 008, 722912-51 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4276-3?
4276-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-883-1933. 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