PartsTable
Technical Data Sheet
1881 1-2IN ✓ 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 TAPE,INSULATION,ELECTRICAL is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: NICKEL ALLOY DISK, stem_type: RISING, valve_size: 0.500 INCHES IN, bonnet_type: INSIDE SCREW, pressure_class: ERR-060, connection_type: THREADED INTERNAL PIPE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-288-7200, 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
1881 1-2IN
NSN: 4820-00-288-7200
FSC: 4820
CAGE: 37239 — LUNKENHEIMER CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY DISK
stem_typeRISING
valve_size0.500 INCHES IN
bonnet_typeINSIDE SCREW
pressure_classERR-060
connection_typeTHREADED INTERNAL PIPE
features_providedBONNET PACKING
nominal_thread_size0.500 INCHES IN
valve_operation_methodMANUAL
bonnet_attachment_methodUNION
thread_series_designatorNPT
operating_pressure_and_type350.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 1000.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
NSN4820-00-288-7200
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 1881 1-2IN · 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
INLET RELATIONSHIP WITH OUTLET: IDENTICAL
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 550.0 FAHRENHEIT STEAM DEGF
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
PRESSURE CLASS: ERR-060
NOMINAL THREAD SIZE: 0.500 INCHES IN
OPERATING PRESSURE AND TYPE: 350.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 1000.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
STEM TYPE: RISING
THREAD SERIES DESIGNATOR: NPT
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
INLET RELATIONSHIP WITH OUTLETIDENTICAL
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED550.0 FAHRENHEIT STEAM DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
PRESSURE CLASSERR-060
NOMINAL THREAD SIZE0.500 INCHES IN
OPERATING PRESSURE AND TYPE350.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 1000.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
STEM TYPERISING
THREAD SERIES DESIGNATORNPT
MATERIALCOPPER ALLOY 922 BODY
CONNECTION TYPETHREADED INTERNAL PIPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
94-556-1042-11-00-00Interchangeable
interchangeable cross-reference
interchangeable
A7234Interchangeable
interchangeable cross-reference
interchangeable
188-1Interchangeable
interchangeable cross-reference
interchangeable
11545-58Interchangeable
interchangeable cross-reference
interchangeable
SD1375PC163Interchangeable
interchangeable cross-reference
interchangeable
B3524-86Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1881 1-2IN?
1881 1-2IN is a TAPE,INSULATION,ELECTRICAL.
What parts can replace 1881 1-2IN?
There are 18 known substitutes for 1881 1-2IN: 94-556-1042-11-00-00, A7234, 188-1 and 15 more. Substitute compatibility should be verified for your specific system.
Is 1881 1-2IN still available?
1881 1-2IN is currently cancelled.
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