PartsTable
Technical Data Sheet
PartsTable / COMPONENT / N-498
N-498 ✓ 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

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, material: RUBBER CHLOROPRENE CLASS CR FLOW CONTROL DEVICE, body_style: STRAIGHT THRU, temp_rating: 165.0 FAHRENHEIT NOMINAL DEGF, furnished_items: TAILPIECE AND UNION NUT, regulation_type: AUTOMATIC SINGLE STAGE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-181-8912, 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
N-498
NSN: 4820-00-181-8912
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialRUBBER CHLOROPRENE CLASS CR FLOW CONTROL DEVICE
body_styleSTRAIGHT THRU
temp_rating165.0 FAHRENHEIT NOMINAL DEGF
furnished_itemsTAILPIECE AND UNION NUT
regulation_typeAUTOMATIC SINGLE STAGE
special_featuresENDS W/O BRAZING RINGS INSTALLED
valve_stem_designSINGLE SEAT
flow_control_deviceDIAPHRAGM
valve_loading_methodSPRING
outlet_pressure_range55.0 TO 120.0 CAMERA MOUNT
special_test_featuresHIGH-IMPACT SHOCK TESTS ARE REQUIRED AS DIRECTED IN PARAGRAPHS 3.6 AND 4.4.2.3 OF MIL-V-2042
NSN4820-00-181-8912
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N-498 · 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
KEY FEATURES
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
END CONNECTION QUANTITY: 2
•
TEST DATA DOCUMENT: 81349-MILV2042 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
•
TEMP RATING: 165.0 FAHRENHEIT NOMINAL DEGF
•
FLOW CONTROL DEVICE: DIAPHRAGM
•
FILTER: NOT INCLUDED
•
VALVE STEM DESIGN: SINGLE SEAT
•
REGULATION TYPE: AUTOMATIC DOUBLE STAGE
TECHNICAL CHARACTERISTICS (FLIS)
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
END CONNECTION QUANTITY2
TEST DATA DOCUMENT81349-MILV2042 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
TEMP RATING165.0 FAHRENHEIT NOMINAL DEGF
FLOW CONTROL DEVICEDIAPHRAGM
FILTERNOT INCLUDED
VALVE STEM DESIGNSINGLE SEAT
REGULATION TYPEAUTOMATIC DOUBLE STAGE
FLOW CONTROL DEVICEDIAPHRAGM
SPECIAL TEST FEATURESHIGH-IMPACT SHOCK TESTS ARE REQUIRED AS DIRECTED IN PARAGRAPHS 3.6 AND 4.4.2.3 OF MIL-V-2042
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
ASTM F 1370Interchangeable
interchangeable cross-reference
interchangeable
ASTM F 1370-2GF1BInterchangeable
interchangeable cross-reference
interchangeable
MILV2042Interchangeable
interchangeable cross-reference
interchangeable
ASTM F 1370 2KF1BInterchangeable
interchangeable cross-reference
interchangeable
ASTM F1370 2K1BInterchangeable
interchangeable cross-reference
interchangeable
30809013Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy N-498?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is N-498?
N-498 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace N-498?
There are 28 known substitutes for N-498: ASTM F 1370, ASTM F 1370-2GF1B, MILV2042 and 25 more. Substitute compatibility should be verified for your specific system.
Is N-498 still available?
N-498 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — N-498

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026