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Technical Data Sheet
PartsTable / MRO / 1013-4
1013-4 ✓ 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 GONG,BUOY,NAVIGATIONAL MARKER is a the manufacturer industrial component. Key specifications include length: 0.188 INCHES NOMINAL SQUARE END IN, material: RUBBER ETHYLENE-PROPYLENE CLASS EPM, blade_type: BACKWARD CURVE, body_style: HOLE MOUNTED, body_width: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, bore_shape: STRAIGHT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-147-6538, 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→ 1013-4
NSN: 4730-00-147-6538
FSC: 4730
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
length0.188 INCHES NOMINAL SQUARE END IN
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM
blade_typeBACKWARD CURVE
body_styleHOLE MOUNTED
body_width0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
bore_shapeSTRAIGHT
head_styleBINDING
lens_colorCOLORLESS
seat_angle37.0 DEGREES
body_height0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
body_length0.660 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
design_typeSINGLE WIDTH
NSN4730-00-147-6538
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1013-4 · 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
•
MEDIA FOR WHICH DESIGNED: AIR FIRST RESPONSE
•
OPERATING PRESSURE: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
SECOND LEG LENGTH: 0.614 INCHES NOMINAL IN
•
CONNECTION STYLE: FLARED FIRST QUICK DISCONNECT END
•
THREAD CLASS: 3A FIRST QUICK DISCONNECT END A
•
MAXIMUM OPERATING TEMP: 350.0 FAHRENHEIT FIRST RESPONSE DEGF
•
FIRST LEG LENGTH: 0.614 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SECOND LEG LENGTH0.614 INCHES NOMINAL IN
CONNECTION STYLEFLARED FIRST QUICK DISCONNECT END
THREAD CLASS3A FIRST QUICK DISCONNECT END A
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SECOND RESPONSE
MAXIMUM OPERATING TEMP350.0 FAHRENHEIT FIRST RESPONSE DEGF
FIRST LEG LENGTH0.614 INCHES NOMINAL IN
MAXIMUM OPERATING TEMP350.0 FAHRENHEIT SECOND RESPONSE DEGF
STYLE DESIGNATORCOUPLING ASSEMBLY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
535778-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1013-4?
1013-4 is a GONG,BUOY,NAVIGATIONAL MARKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1013-4?
There is 1 known substitute for 1013-4: 535778-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 1013-4?
1013-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-147-6538. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026