PartsTable
Technical Data Sheet
MIL-PRF-7908 ✓ 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

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include seat_angle: 37.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARED (TUBE) FIRST END, special_features: THIRD END 1/4 ANPT, style_designator: STRAIGHT THRU. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-528-2356, 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
MIL-PRF-7908
NSN: 4820-00-528-2356
FSC: 4820
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
seat_angle37.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) FIRST END
special_featuresTHIRD END 1/4 ANPT
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND SECOND END
mounting_positionHORIZONTAL
operating_pressure450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceCONE
nominal_thread_size0.500 INCHES FIRST END IN
face_to_face_distance2.125 INCHES IN
NSN4820-00-528-2356
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: MIL-PRF-7908 · 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
NOMINAL THREAD SIZE: 0.500 INCHES FIRST END IN
THREAD DIRECTION: RIGHT-HAND SECOND END
THREAD QUANTITY PER INCH: 18 SECOND END
CONNECTION STYLE: INVERTED FLARE (TUBE) SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.312 INCHES FIRST END IN
SEAT ANGLE: 37.0 DEGREES FIRST END
FACE TO FACE DISTANCE: 2.125 INCHES IN
THREAD SERIES DESIGNATOR: ANPT SECOND END
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD QUANTITY PER INCH18 SECOND END
CONNECTION STYLEINVERTED FLARE (TUBE) SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.312 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES FIRST END
FACE TO FACE DISTANCE2.125 INCHES IN
THREAD SERIES DESIGNATORANPT SECOND END
NONDEFINITIVE SPEC/STD DATAG STYLE
MEDIA FOR WHICH DESIGNEDOXYGEN, GASEOUS SINGLE RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
ST897Interchangeable
interchangeable cross-reference
interchangeable
84603Interchangeable
interchangeable cross-reference
interchangeable
6F2956Interchangeable
interchangeable cross-reference
interchangeable
9803Interchangeable
interchangeable cross-reference
interchangeable
46S670Interchangeable
interchangeable cross-reference
interchangeable
KH03ZG280Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-PRF-7908?
MIL-PRF-7908 is a CAPACITOR,FIXED,CERAMIC DIELECTR.
What parts can replace MIL-PRF-7908?
There are 27 known substitutes for MIL-PRF-7908: ST897, 84603, 6F2956 and 24 more. Substitute compatibility should be verified for your specific system.
Is MIL-PRF-7908 still available?
MIL-PRF-7908 is currently cancelled.
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