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Technical Data Sheet
PartsTable / COMPONENT / 73936R1
73936R1 ✓ 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 BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1015, body_style: SHOULDER, overall_length: 3.812 INCHES NOMINAL IN, hardness_rating: 48.5 ROCKWELL C NOMINAL, width_across_flats: 1.000 INCHES NOMINAL IN, concentric_hole_depth: 1.937 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-374-9434, 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
73936R1
NSN: 4730-00-374-9434
FSC: 4730
CAGE: 89346 — NAVISTAR INTL CORP TRUCK BR OHIO PLANT (USA)
SPECIFICATIONS
materialSTEEL COMP 1015
body_styleSHOULDER
overall_length3.812 INCHES NOMINAL IN
hardness_rating48.5 ROCKWELL C NOMINAL
width_across_flats1.000 INCHES NOMINAL IN
concentric_hole_depth1.937 INCHES NOMINAL IN
first_end_thread_class2A A
first_end_thread_length1.125 INCHES NOMINAL IN
wrenching_feature_styleHEXAGON
concentric_hole_diameter0.343 INCHES NOMINAL IN
cotter_pin_hole_diameter0.140 INCHES NOMINAL IN
wrenching_feature_height0.375 INCHES NOMINAL IN
NSN4730-00-374-9434
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 73936R1 · 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
•
BODY STYLE: SHOULDER
•
CONCENTRIC HOLE DIAMETER: 0.343 INCHES NOMINAL IN
•
SECOND END STYLE DESIGNATOR: PLAIN
•
FIRST END CONNECTION TYPE: THREADED EXTERNAL TUBE
•
SECOND DIAMETER FROM WRENCHING FEATURE: 0.746 INCHES MINIMUM AND 0.747 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE
•
FIRST END THREAD SERIES DESIGNATOR: UNF
•
FIRST RADIAL FLUID HOLE DIAMETER: 0.187 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY STYLESHOULDER
CONCENTRIC HOLE DIAMETER0.343 INCHES NOMINAL IN
SECOND END STYLE DESIGNATORPLAIN
FIRST END CONNECTION TYPETHREADED EXTERNAL TUBE
SECOND DIAMETER FROM WRENCHING FEATURE0.746 INCHES MINIMUM AND 0.747 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE
FIRST END THREAD SERIES DESIGNATORUNF
FIRST RADIAL FLUID HOLE DIAMETER0.187 INCHES NOMINAL IN
WRENCHING FEATURE STYLEHEXAGON
SECOND END NOMINAL THREAD SIZE0.125 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
30071Interchangeable
interchangeable cross-reference
interchangeable
30-177Interchangeable
interchangeable cross-reference
interchangeable
HS-2Interchangeable
interchangeable cross-reference
interchangeable
23560Interchangeable
interchangeable cross-reference
interchangeable
27937Interchangeable
interchangeable cross-reference
interchangeable
47131Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 73936R1?
73936R1 is a BOLT,FLUID PASSAGE.
What parts can replace 73936R1?
There are 11 known substitutes for 73936R1: 30071, 30-177, HS-2 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 73936R1?
73936R1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-374-9434. 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