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Technical Data Sheet
PartsTable / COMPONENT / 338BLK1/2X2-1/2
338BLK1/2X2-1/2 ✓ 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 338BLK1/2X2-1/2 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-265-6905, 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
338BLK1/2X2-1/2
NSN: 4730-00-265-6905
FSC: 4730
CAGE: 80996 — ITT GRINNELL CORP (USA)
SPECIFICATIONS
Part Number338BLK1/2X2-1/2
NSN4730-00-265-6905
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 338BLK1/2X2-1/2 · 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
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
SPECIFICATION/STANDARD DATA: 81346-ASTM A733 GOVERNMENT STANDARD AND 96906-MS51953 GOVERNMENT STANDARD
•
NOMINAL OVERALL LENGTH: 2.500 INCHES IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
•
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNED: SCHEDULE 40 ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
SPECIFICATION/STANDARD DATA81346-ASTM A733 GOVERNMENT STANDARD AND 96906-MS51953 GOVERNMENT STANDARD
NOMINAL OVERALL LENGTH2.500 INCHES IN
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNEDSCHEDULE 40 ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
SURFACE TREATMENTOXIDE OVERALL
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
3425Interchangeable
interchangeable cross-reference
interchangeable
UVInterchangeable
interchangeable cross-reference
interchangeable
9913425Interchangeable
interchangeable cross-reference
interchangeable
34-81-25Interchangeable
interchangeable cross-reference
interchangeable
NN12PC34SZ25Interchangeable
interchangeable cross-reference
interchangeable
3N20-2PC34SZ25Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 338BLK1/2X2-1/2?
338BLK1/2X2-1/2 is a 338BLK1/2X2-1/2.
What parts can replace 338BLK1/2X2-1/2?
There are 21 known substitutes for 338BLK1/2X2-1/2: 3425, UV, 9913425 and 18 more. Substitute compatibility should be verified for your specific system.
Is 338BLK1/2X2-1/2 still available?
338BLK1/2X2-1/2 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