PartsTable
Technical Data Sheet
PartsTable / MRO / 2397-A
2397-A ✓ 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 2397-A is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: TUBE COUPLING, nut_height: 0.750 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN, seat_angle: 45.00 DEGREES NOMINAL, thread_class: 3B, thread_series: UNF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-200-0912, 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→ 2397-A
NSN: 4730-00-200-0912
FSC: 4730
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleTUBE COUPLING
nut_height0.750 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
seat_angle45.00 DEGREES NOMINAL
thread_class3B
thread_seriesUNF
thread_directionRIGHT-HAND
fabrication_methodMACHINED OR FORGED
length_to_shoulder0.562 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN
width_across_flats0.875 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES IN
smallest_inside_diameter0.502 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
NSN4730-00-200-0912
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2397-A · 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 THREAD SIZE: 0.750 INCHES IN
•
WIDTH ACROSS FLATS: 0.875 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,COMP 21 FED SPEC 1ST MATERIAL RESPONSE OVERALL
•
THREAD SERIES: UNF
•
LENGTH TO SHOULDER: 0.562 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.750 INCHES IN
NOMINAL THREAD SIZE0.750 INCHES IN
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
MATERIALCOPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,COMP 21 FED SPEC 1ST MATERIAL RESPONSE OVERALL
THREAD SERIESUNF
LENGTH TO SHOULDER0.562 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN
SEAT ANGLE45.00 DEGREES NOMINAL
THREAD SERIESUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
3240Interchangeable
interchangeable cross-reference
interchangeable
WWN351TYPEAInterchangeable
interchangeable cross-reference
interchangeable
A733S-264CFGInterchangeable
interchangeable cross-reference
interchangeable
ASTM-A733Interchangeable
interchangeable cross-reference
interchangeable
172-84Interchangeable
interchangeable cross-reference
interchangeable
H-34333Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2397-A?
2397-A is a 2397-A. It is classified as a MRO (MRO_GENERAL).
What parts can replace 2397-A?
There are 12 known substitutes for 2397-A: 3240, WWN351TYPEA, A733S-264CFG and 9 more. Substitute compatibility should be verified for your specific system.
Is 2397-A still available?
2397-A 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