PartsTable
Technical Data Sheet
PartsTable / COMPONENT / A4966-3-4
A4966-3-4 ✓ 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

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: TUBE COUPLING, nut_height: 2.188 INCHES NOMINAL IN, seat_angle: 45.00 DEGREES NOMINAL, thread_series: UNS, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-930-4057, 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
A4966-3-4
NSN: 4730-00-930-4057
FSC: 4730
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleTUBE COUPLING
nut_height2.188 INCHES NOMINAL IN
seat_angle45.00 DEGREES NOMINAL
thread_seriesUNS
thread_directionRIGHT-HAND
width_across_flats1.250 INCHES NOMINAL IN
nominal_thread_size1.062 INCHES IN
thread_pitch_diameters+1.0161 TO 1.0230 INCHES IN
smallest_inside_diameter0.755 INCHES NOMINAL IN
thread_quantity_per_inch14
nondefinitive_spec/std_data4 FIGURE
NSN4730-00-930-4057
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A4966-3-4 · 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
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.750 INCHES IN
•
NUT HEIGHT: 2.188 INCHES NOMINAL IN
•
THREAD PITCH DIAMETERS: +1.0161 TO 1.0230 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 4 FIGURE
•
NOMINAL THREAD SIZE: 1.062 INCHES IN
•
THREAD SERIES: UNS
•
SMALLEST INSIDE DIAMETER: 0.755 INCHES NOMINAL IN
•
NUT STYLE: TUBE COUPLING
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL TUBE OUTSIDE DIAMETER0.750 INCHES IN
NUT HEIGHT2.188 INCHES NOMINAL IN
THREAD PITCH DIAMETERS+1.0161 TO 1.0230 INCHES IN
NONDEFINITIVE SPEC/STD DATA4 FIGURE
NOMINAL THREAD SIZE1.062 INCHES IN
THREAD SERIESUNS
SMALLEST INSIDE DIAMETER0.755 INCHES NOMINAL IN
NUT STYLETUBE COUPLING
SEAT ANGLE45.00 DEGREES NOMINAL
WIDTH ACROSS FLATS1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
B1AInterchangeable
interchangeable cross-reference
interchangeable
RP064-69NE51Interchangeable
interchangeable cross-reference
interchangeable
21A00-0011Interchangeable
interchangeable cross-reference
interchangeable
55034Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
L3418Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy A4966-3-4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A4966-3-4?
A4966-3-4 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace A4966-3-4?
There are 23 known substitutes for A4966-3-4: B1A, RP064-69NE51, 21A00-0011 and 20 more. Substitute compatibility should be verified for your specific system.
Is A4966-3-4 still available?
A4966-3-4 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A4966-3-4

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026