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G551 ✓ 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 color: WHITE OVERALL, material: GLASS OVERALL, adhesive_type: PRESSURE SENSITIVE, nominal_width: 2.000 INCHES IN, nominal_length: 2160.0 INCHES IN, adhesive_location: ONE SIDE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-140-3704, 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
G551
NSN: 4820-00-140-3704
FSC: 4820
CAGE: 59505 — NEWPORT SCIENTIFIC, INC. (USA)
SPECIFICATIONS
colorWHITE OVERALL
materialGLASS OVERALL
adhesive_typePRESSURE SENSITIVE
nominal_width2.000 INCHES IN
nominal_length2160.0 INCHES IN
adhesive_locationONE SIDE
cut_type_and_quantity1 SINGLE
nominal_overall_thickness0.0070 INCHES IN
nondefinitive_spec/std_dataGFT TYPE
departure_from_cited_designatorAS MODIFIED BY W AND COLOR
material_document_and_classificationMIL-I-15126,TYPE GFT MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
dielectric_withstanding_voltage_in_volts1000.0
NSN4820-00-140-3704
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: G551 · 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
•
MATERIAL: ALUMINUM ALLOY
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)
MATERIALALUMINUM ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
51Interchangeable
interchangeable cross-reference
interchangeable
27-2 IN WHITEInterchangeable
interchangeable cross-reference
interchangeable
119-75054-2Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G551?
G551 is a TAPE,INSULATION,ELECTRICAL.
What parts can replace G551?
There are 3 known substitutes for G551: 51, 27-2 IN WHITE, 119-75054-2. Substitute compatibility should be verified for your specific system.
Is G551 still available?
G551 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026