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Technical Data Sheet
PartsTable / COMPONENT / N156PC9 3-4
N156PC9 3-4 ✓ 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 PARTS KIT,STEAM TRAP is a the manufacturer industrial component. Key specifications include nonsupply_items_and_quantities: DIAPHRAGM PLATE ASSY,CRES AND BRASS 1;PACKING NUT,BRASS 1;HOLDER ASSY,DIAPHRAGM,CRES 1. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-977-0699, 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
N156PC9 3-4
NSN: 4730-00-977-0699
FSC: 4730
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
component_quantity3
nonsupply_items_and_quantitiesDIAPHRAGM PLATE ASSY,CRES AND BRASS 1;PACKING NUT,BRASS 1;HOLDER ASSY,DIAPHRAGM,CRES 1
NSN4730-00-977-0699
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: N156PC9 3-4 · 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
•
NONSUPPLY ITEMS AND QUANTITIES: DIAPHRAGM PLATE ASSY,CRES AND BRASS 1;PACKING NUT,BRASS 1;HOLDER ASSY,DIAPHRAGM,CRES 1
•
COMPONENT QUANTITY: 3
TECHNICAL CHARACTERISTICS (FLIS)
NONSUPPLY ITEMS AND QUANTITIESDIAPHRAGM PLATE ASSY,CRES AND BRASS 1;PACKING NUT,BRASS 1;HOLDER ASSY,DIAPHRAGM,CRES 1
COMPONENT QUANTITY3
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
48526Interchangeable
interchangeable cross-reference
interchangeable
5998PL0946200Interchangeable
interchangeable cross-reference
interchangeable
58450Interchangeable
interchangeable cross-reference
interchangeable
D58450Interchangeable
interchangeable cross-reference
interchangeable
F451ARJCJC-6-6-4-41.5Interchangeable
interchangeable cross-reference
interchangeable
4856-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N156PC9 3-4?
N156PC9 3-4 is a PARTS KIT,STEAM TRAP.
What parts can replace N156PC9 3-4?
There are 16 known substitutes for N156PC9 3-4: 48526, 5998PL0946200, 58450 and 13 more. Substitute compatibility should be verified for your specific system.
Is N156PC9 3-4 still available?
N156PC9 3-4 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