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Technical Data Sheet
PartsTable / MRO / F51-1
F51-1 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: RUBBER AND ADHESIVE AND PAPER, body_width: 1.187 INCHES NOMINAL IN, body_length: 3.500 INCHES NOMINAL IN, groove_width: 0.062 INCHES NOMINAL IN, grommet_style: ROUND, hole_diameter: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-051-1090, 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
MRO→ MRO_GENERAL→ F51-1
NSN: 4820-00-051-1090
FSC: 4820
CAGE: 45681 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV CORPORATE HEADQUARTERS (USA)
SPECIFICATIONS
materialRUBBER AND ADHESIVE AND PAPER
body_width1.187 INCHES NOMINAL IN
body_length3.500 INCHES NOMINAL IN
groove_width0.062 INCHES NOMINAL IN
grommet_styleROUND
hole_diameter0.375 INCHES NOMINAL IN
terminal_typeTAB, SOLDER LUG
coil_form_typeSOLID
inclosure_typeENCAPSULATED
overall_height0.250 INCHES NOMINAL IN
overall_length0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
terminal_width0.265 INCHES NOMINAL IN
NSN4820-00-051-1090
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: F51-1 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
F51-1Interchangeable
interchangeable cross-reference
interchangeable
1866Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-26/2Interchangeable
interchangeable cross-reference
interchangeable
ZR55,50 OHMInterchangeable
interchangeable cross-reference
interchangeable
0504-0048-00Interchangeable
interchangeable cross-reference
interchangeable
11-622-BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F51-1?
F51-1 is a RESISTOR,FIXED,WIRE WOUND,INDUCT. It is classified as a MRO (MRO_GENERAL).
What parts can replace F51-1?
There are 6 known substitutes for F51-1: F51-1, 1866, MIL-PRF-26/2 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for F51-1?
F51-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-051-1090. 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