PartsTable
Technical Data Sheet
521500-1 ✓ Verified by PartsTable
Bosch · 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

MINI SENIOR meets the nutritional requirements of older dogs of small breeds (up to an adult weight of 15kg) from the age of 7 or 8.<br><br>MINI SENIOR is made with a high proportion of fresh poultry (min. 25%) and without cereals containing gluten.<br><br>The energy content (7% fat) is low, while the fiber content (6.5% crude fiber) is significantly increased, which relieves the dog's metabolism and at the same time regulates the digestion system.<br><br>Due to the addition of an immune complex containing mannans and glucans, the intestinal flora is stabilized and the immune system is strengthened.<br><br>- manufactured without cereals containing gluten<br>- contains mannans and glucans for stabilizing the intestinal flora and the immune system<br>- delayed cell aging due to high levels of vitamins and trace elements<br>- with moderate protein content (19 %) This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-250-1537, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
521500-1
NSN: 4810-01-250-1537
FSC: 4810
CAGE: 96124 — TRANSDIGM INC DIV AERO FLUID PRODUCTS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 BODY
thread_class3B ALL ENDS
connection_typeTHREADED INTERNAL BOSS ALL ENDS
connection_styleGASKET SEAL(BOSS) ALL ENDS
thread_directionRIGHT-HAND ALL ENDS
mounting_positionHORIZONTAL
operating_pressure22.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.375 INCHES SECOND END IN
maximum_operating_temp260.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodSOLENOID
media_for_which_designedAIR SINGLE RESPONSE
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
NSN4810-01-250-1537
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 521500-1 · Bosch ⚠ 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
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
MOUNTING POSITION: HORIZONTAL
CONNECTION TYPE: THREADED INTERNAL BOSS ALL ENDS
FLOW CONTROL DEVICE NORMAL OPERATION POSITION: OPEN
MEDIA FOR WHICH DESIGNED: AIR SINGLE RESPONSE
VOLTAGE IN VOLTS AND CURRENT TYPE: 28.0 DC
MATERIAL: ALUMINUM ALLOY 6061 BODY
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
MOUNTING POSITIONHORIZONTAL
CONNECTION TYPETHREADED INTERNAL BOSS ALL ENDS
FLOW CONTROL DEVICE NORMAL OPERATION POSITIONOPEN
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
VOLTAGE IN VOLTS AND CURRENT TYPE28.0 DC
MATERIALALUMINUM ALLOY 6061 BODY
OPERATING PRESSURE22.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
286648R1Interchangeable
interchangeable cross-reference
interchangeable
13-267Interchangeable
interchangeable cross-reference
interchangeable
1326-7GInterchangeable
interchangeable cross-reference
interchangeable
MS-2 100UH 2%Interchangeable
interchangeable cross-reference
interchangeable
1404-004-A002Interchangeable
interchangeable cross-reference
interchangeable
1404004A002-000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 521500-1?
521500-1 is a CONNECTOR,PLUG,ELECTRICAL manufactured by Bosch.
What parts can replace 521500-1?
There are 14 known substitutes for 521500-1: 286648R1, 13-267, 1326-7G and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 521500-1?
521500-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-250-1537. This indicates validated use in U.S. government and defense supply chains.
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