PartsTable
Technical Data Sheet
AC366 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 12.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: PLAIN (PIPE) SECOND END, nominal_thread_size: 0.438 INCHES FIRST END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-282-7125, 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
AC366
NSN: 5325-00-282-7125
FSC: 5325
CAGE: U1954 — SAFRAN SEATS GB LIMITED (GBR)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle12.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_stylePLAIN (PIPE) SECOND END
nominal_thread_size0.438 INCHES FIRST END IN
nominal_overall_length0.850 INCHES IN
thread_quantity_per_inch24 FIRST END
thread_series_designatorNPTF SECOND END
nondefinitive_spec/std_data1C FIGURE
specification/standard_data81343-J246 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
furnished_items_and_quantity1 TUBE COUPLING NUT W/SLEEVE
NSN5325-00-282-7125
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AC366 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
CASEHARDENING INDICATOR: NOT CASEHARDENED
MATERIAL: STEEL
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66,FS1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
MAJOR THICKNESS: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
MATERIAL HARDNESS RATING: 69.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
USAGE DESIGN: EXTERNAL
INSIDE DIAMETER: 0.361 INCHES MINIMUM AND 0.368 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,FS1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
MATERIAL HARDNESS RATING69.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
USAGE DESIGNEXTERNAL
INSIDE DIAMETER0.361 INCHES MINIMUM AND 0.368 INCHES MAXIMUM IN
RING STYLEEXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
166F1-4BY1-8Interchangeable
interchangeable cross-reference
interchangeable
100918Interchangeable
interchangeable cross-reference
interchangeable
B166-42Interchangeable
interchangeable cross-reference
interchangeable
30F14054Interchangeable
interchangeable cross-reference
interchangeable
31-0040Interchangeable
interchangeable cross-reference
interchangeable
31-050Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AC366?
AC366 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace AC366?
There are 12 known substitutes for AC366: 166F1-4BY1-8, 100918, B166-42 and 9 more. Substitute compatibility should be verified for your specific system.
Is AC366 still available?
AC366 is currently cancelled.
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