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Technical Data Sheet
PartsTable / COMPONENT / 51172N08K-183
51172N08K-183 ✓ 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 HOUSING,MECHANICAL DRIVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, overall_height: 0.250 INCHES NOMINAL IN, flange_diameter: 3.750 INCHES NOMINAL IN, special_features: WEAPON SYSTEM ESSENTIAL, body_inside_diameter: 3.031 INCHES NOMINAL IN, end_item_identification: OLIVER PERRY CLASS FFG. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-049-8709, 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
51172N08K-183
NSN: 4820-01-049-8709
FSC: 4820
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
overall_height0.250 INCHES NOMINAL IN
flange_diameter3.750 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL
body_inside_diameter3.031 INCHES NOMINAL IN
end_item_identificationOLIVER PERRY CLASS FFG
criticality_code_justificationFEAT
NSN4820-01-049-8709
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 51172N08K-183 · 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: RUBBER BUNA N FACE
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
BODY INSIDE DIAMETER: 3.031 INCHES NOMINAL IN
•
FLANGE DIAMETER: 3.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUNA N FACE
MATERIALCOPPER ALLOY BODY
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
CRITICALITY CODE JUSTIFICATIONFEAT
BODY INSIDE DIAMETER3.031 INCHES NOMINAL IN
FLANGE DIAMETER3.750 INCHES NOMINAL IN
OVERALL HEIGHT0.250 INCHES NOMINAL IN
END ITEM IDENTIFICATIONOLIVER PERRY CLASS FFG
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
1084201Interchangeable
interchangeable cross-reference
interchangeable
584201Interchangeable
interchangeable cross-reference
interchangeable
108420Interchangeable
interchangeable cross-reference
interchangeable
51172-N183Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51172N08K-183?
51172N08K-183 is a HOUSING,MECHANICAL DRIVE.
What parts can replace 51172N08K-183?
There are 4 known substitutes for 51172N08K-183: 1084201, 584201, 108420 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51172N08K-183?
51172N08K-183 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-049-8709. 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