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803-5959303 — INDICATOR,VALVE OPENING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

803-5959303: INDICATOR,VALVE OPENING.

The INDICATOR,VALVE OPENING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY CASE, reducer_type: CONCENTRIC, thread_class: 2B FIRST END, connection_type: THREADED EXTERNAL TUBE SECOND END, connection_style: PLAIN (TUBE) SECOND END, special_features: FOR 8 IN. BALL VALVE IN.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-338-5375, 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
803-5959303
NSN: 4730-01-338-5375
NIINs: 013385375, 013399826, 013750506
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY CASE
reducer_typeCONCENTRIC
thread_class2B FIRST END
connection_typeTHREADED EXTERNAL TUBE SECOND END
connection_stylePLAIN (TUBE) SECOND END
special_featuresFOR 8 IN. BALL VALVE IN
nominal_thread_size1.000 INCHES SECOND END IN
nominal_overall_length1.000 INCHES IN
thread_series_designatorUNEF SECOND END
general_characteristics_item_descriptionINCL PLATE 1,BAR 4; PLATE 26.620 IN. DIA,FOR 8.000 IN. VALVE ON VALVE HULL AND BACKUP SYSTEM IN
nominal_outside_diameter_tube_accommodated0.375 INCHES FIRST END IN
NSN4730-01-338-5375
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 803-5959303 · 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
•
CONNECTION STYLE: PLAIN (TUBE) SECOND END
•
NOMINAL OVERALL LENGTH: 1.000 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.625 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) SECOND END
CONNECTION STYLEPLAIN (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.000 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES SECOND END IN
NOMINAL THREAD SIZE0.625 INCHES FIRST END IN
NOMINAL THREAD SIZE1.000 INCHES SECOND END IN
THREAD CLASS2A SECOND END A
SUBSTITUTES & CROSS-REFERENCES 2
524-6603688-VHBA-117Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
803-5959303-X-106,108Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 803-5959303?
803-5959303 is a INDICATOR,VALVE OPENING.
What parts can replace 803-5959303?
There are 2 known substitutes for 803-5959303: 524-6603688-VHBA-117, 803-5959303-X-106,108. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-5959303?
803-5959303 is cataloged in the U.S. Government catalog under NSN 4730-01-338-5375. This indicates validated use in U.S. government and defense supply chains.
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