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201059 — PARTS KIT,COCK,OVER

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

201059: PARTS KIT,COCK,OVER.

The PARTS KIT,COCK,OVER is a the manufacturer industrial component. Key specifications include material: ALUMINUM, body_style: BODY WRENCHING, overall_length: 1.742 INCHES NOMINAL IN, surface_treatment: ANODIZE, width_across_flats: 0.688 INCHES NOMINAL IN, concentric_hole_depth: 1.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-203-9746, 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
201059
NSN: 4730-00-203-9746
NIINs: 002039746, 009701777
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialALUMINUM
body_styleBODY WRENCHING
overall_length1.742 INCHES NOMINAL IN
surface_treatmentANODIZE
width_across_flats0.688 INCHES NOMINAL IN
concentric_hole_depth1.250 INCHES NOMINAL IN
second_end_seat_angle12.5 DEGREES NOMINAL
second_end_thread_class2A A
wrenching_feature_styleHEXAGON
concentric_hole_diameter0.188 INCHES NOMINAL IN
cotter_pin_hole_diameter0.095 INCHES NOMINAL IN
second_end_thread_length0.360 INCHES NOMINAL IN
NSN4730-00-203-9746
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 201059 · 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
•
WIDTH ACROSS FLATS: 0.688 INCHES NOMINAL IN
•
SECOND END NOMINAL THREAD SIZE: 0.438 INCHES IN
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 0.340 INCHES NOMINAL IN
•
SECOND END THREAD CLASS: 2A A
•
THIRD DIAMETER FROM WRENCHING FEATURE: 0.507 INCHES NOMINAL IN
•
BODY STYLE: BODY WRENCHING
•
COTTER PIN HOLE DIAMETER: 0.095 INCHES NOMINAL IN
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF THIRD DIAMETER: 0.950 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.688 INCHES NOMINAL IN
SECOND END NOMINAL THREAD SIZE0.438 INCHES IN
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER0.340 INCHES NOMINAL IN
SECOND END THREAD CLASS2A A
THIRD DIAMETER FROM WRENCHING FEATURE0.507 INCHES NOMINAL IN
BODY STYLEBODY WRENCHING
COTTER PIN HOLE DIAMETER0.095 INCHES NOMINAL IN
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF THIRD DIAMETER0.950 INCHES NOMINAL IN
SECOND DIAMETER FROM WRENCHING FEATURE0.431 INCHES NOMINAL IN
CONCENTRIC HOLE DEPTH1.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
ER01232Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 201059?
201059 is a PARTS KIT,COCK,OVER.
What parts can replace 201059?
There is 1 known substitute for 201059: ER01232. Substitute compatibility should be verified for your specific system.
What is the NSN for 201059?
201059 is cataloged in the U.S. Government catalog under NSN 4730-00-203-9746. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.