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Technical Data Sheet
PartsTable / COMPONENT / PTR-SS 3/4X1/2
PTR-SS 3/4X1/2 ✓ 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 PTR-SS 3/4X1/2 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-071-1671, 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
PTR-SS 3/4X1/2
NSN: 4730-00-071-1671
FSC: 4730
CAGE: 50948 — PARKER HANNIFIN CORP STRATOFLEX DIV AIRCRAFT FITTINGS OPN (USA)
SPECIFICATIONS
Part NumberPTR-SS 3/4X1/2
NSN4730-00-071-1671
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: PTR-SS 3/4X1/2 · 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
•
INTERNAL THREAD DIRECTION: RIGHT-HAND
•
EXTERNAL THREAD DIRECTION: RIGHT-HAND
•
EXTERNAL SCREW THREAD SERIES DESIGNATOR: ANPT
•
INTERNAL SCREW THREAD SERIES DESIGNATOR: ANPT
•
STYLE DESIGNATOR: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763, CLASS 316 FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL COMP 316
•
SURFACE TREATMENT: PASSIVATE
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL THREAD DIRECTIONRIGHT-HAND
EXTERNAL THREAD DIRECTIONRIGHT-HAND
EXTERNAL SCREW THREAD SERIES DESIGNATORANPT
INTERNAL SCREW THREAD SERIES DESIGNATORANPT
STYLE DESIGNATOROUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 316 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 316
SURFACE TREATMENTPASSIVATE
SPECIFICATION/STANDARD DATA81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 88044-AN912 GOVERNMENT STANDARD
EXTERNAL THREAD SIZE3/4-14
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
4360Interchangeable
interchangeable cross-reference
interchangeable
3/4 X 1/2 PTR-SSInterchangeable
interchangeable cross-reference
interchangeable
AS4842Interchangeable
Same NIIN cross-reference
interchangeable
AS4861Interchangeable
Same NIIN cross-reference
interchangeable
SAE-AS4842Interchangeable
Same NIIN cross-reference
interchangeable
AN912-7KInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PTR-SS 3/4X1/2?
PTR-SS 3/4X1/2 is a PTR-SS 3/4X1/2.
What parts can replace PTR-SS 3/4X1/2?
There are 9 known substitutes for PTR-SS 3/4X1/2: 4360, 3/4 X 1/2 PTR-SS, AS4842 and 6 more. Substitute compatibility should be verified for your specific system.
Is PTR-SS 3/4X1/2 still available?
PTR-SS 3/4X1/2 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