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Technical Data Sheet
PartsTable / COMPONENT / 622-3/8
622-3/8 ✓ 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 622-3/8 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-254-1801, 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
622-3/8
NSN: 4730-00-254-1801
FSC: 4730
CAGE: 82666 — STOCKHAM VALVES AND FITTINGS INC (USA)
SPECIFICATIONS
Part Number622-3/8
NSN4730-00-254-1801
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 622-3/8 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
SPECIFICATION/STANDARD DATA: 81348-WW-P-521 GOVERNMENT SPECIFICATION AND 96906-MS39231 GOVERNMENT STANDARD
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SECOND RESPONSE
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MATERIAL: IRON OR IRON ALLOY OVERALL
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
•
FLOW ANGLE: 45.0 DEGREES
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SPECIFICATION/STANDARD DATA81348-WW-P-521 GOVERNMENT SPECIFICATION AND 96906-MS39231 GOVERNMENT STANDARD
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
THREAD SERIES DESIGNATORNPT ALL ENDS
MATERIALIRON OR IRON ALLOY OVERALL
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
FLOW ANGLE45.0 DEGREES
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
LEG LENGTH0.800 INCHES NOMINAL FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
62238Interchangeable
interchangeable cross-reference
interchangeable
2189159Interchangeable
interchangeable cross-reference
interchangeable
201989Interchangeable
interchangeable cross-reference
interchangeable
J36-16Interchangeable
interchangeable cross-reference
interchangeable
709106Interchangeable
interchangeable cross-reference
interchangeable
B107.59Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 622-3/8?
622-3/8 is a 622-3/8.
What parts can replace 622-3/8?
There are 20 known substitutes for 622-3/8: 62238, 2189159, 201989 and 17 more. Substitute compatibility should be verified for your specific system.
Is 622-3/8 still available?
622-3/8 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