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PartsTable / COMPONENT / 549-1 1-2IN
549-1 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

TAPE,PRESSURE SENSITIVE ADHESIVE. Key specifications include color: BLACK AND BLUE OVERALL, material: COPPER ALLOY OVERALL, bonnet_type: PACKING RETAINING, nominal_width: 0.500 INCHES IN, nominal_length: 36.0 YARDS, surface_luster: LUSTERLESS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-059-1176, 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
549-1 1-2IN
NSN: 4820-01-059-1176
FSC: 4820
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
colorBLACK AND BLUE OVERALL
materialCOPPER ALLOY OVERALL
bonnet_typePACKING RETAINING
nominal_width0.500 INCHES IN
nominal_length36.0 YARDS
surface_lusterLUSTERLESS
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSTREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
style_designatorSTRAIGHT THRU
adhesive_locationONE SIDE
mounting_positionHORIZONTAL OR VERTICAL
operating_pressure700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN4820-01-059-1176
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 549-1 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
•
BONNET TYPE: PACKING RETAINING
•
CONNECTION STYLE: STREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
•
VALVE OPERATION METHOD: AUTOMATIC
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
MOUNTING POSITION: HORIZONTAL OR VERTICAL
•
FLOW CONTROL DEVICE: DISK
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
MATERIAL: COPPER ALLOY OVERALL
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)
BONNET TYPEPACKING RETAINING
CONNECTION STYLESTREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
MOUNTING POSITIONHORIZONTAL OR VERTICAL
FLOW CONTROL DEVICEDISK
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES ALL ENDS IN
MATERIALCOPPER ALLOY OVERALL
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
STYLE DESIGNATORSTRAIGHT THRU
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
5491Interchangeable
interchangeable cross-reference
interchangeable
549 1/2 IN.Interchangeable
interchangeable cross-reference
interchangeable
7000050117Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 549-1 1-2IN?
549-1 1-2IN is a TAPE,PRESSURE SENSITIVE ADHESIVE.
What parts can replace 549-1 1-2IN?
There are 3 known substitutes for 549-1 1-2IN: 5491, 549 1/2 IN., 7000050117. Substitute compatibility should be verified for your specific system.
What is the NSN for 549-1 1-2IN?
549-1 1-2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-059-1176. 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