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Technical Data Sheet
PartsTable / COMPONENT / 953305-1
953305-1 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The TUBE,INSULATOR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304, thread_class: 2A NUT THREAD A, thread_length: 0.360 INCHES NOMINAL NUT THREAD IN, overall_length: 1.000 INCHES NOMINAL IN, shoulder_length: 0.280 INCHES NOMINAL IN, shoulder_diameter: 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM 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 4820-00-121-4445, 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
953305-1
NSN: 4820-00-121-4445
FSC: 4820
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
materialSTEEL COMP 304
thread_class2A NUT THREAD A
thread_length0.360 INCHES NOMINAL NUT THREAD IN
overall_length1.000 INCHES NOMINAL IN
shoulder_length0.280 INCHES NOMINAL IN
shoulder_diameter0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.190 INCHES NUT THREAD IN
distance_across_flats0.250 INCHES NOMINAL IN
thread_quantity_per_inch32 NUT THREAD
thread_series_designatorUNF NUT THREAD
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
NSN4820-00-121-4445
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 953305-1 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONPART OF REGULATOR VALVE HYDRAULICP/N 854550-1
SPECIAL FEATURESMATCHED SET
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
5010088Interchangeable
interchangeable cross-reference
interchangeable
9533051Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 953305-1?
953305-1 is a TUBE,INSULATOR.
What parts can replace 953305-1?
There are 2 known substitutes for 953305-1: 5010088, 9533051. Substitute compatibility should be verified for your specific system.
What is the NSN for 953305-1?
953305-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-121-4445. 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