PartsTable
Technical Data Sheet
PartsTable / COMPONENT / SS845-2181251 ASSEMBLY RB
SS845-2181251 ASSEMBLY RB ✓ 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 VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 955 BODY, valve_size: 3.000 INCHES IN, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, style_designator: STRAIGHT THRU FLANGED ENDS, mounting_position: HORIZONTAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-281-5852, 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
SS845-2181251 ASSEMBLY RB
NSN: 4820-01-281-5852
FSC: 4820
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialCOPPER ALLOY 955 BODY
valve_size3.000 INCHES IN
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
style_designatorSTRAIGHT THRU FLANGED ENDS
mounting_positionHORIZONTAL
nominal_thickness1.375 INCHES ALL ENDS IN
bolt_hole_quantity8 ALL ENDS
flange_face_designPLAIN ALL ENDS
flow_control_deviceDISK
face_to_face_distance11.750 INCHES IN
maximum_operating_temp160.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4820-01-281-5852
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: SS845-2181251 ASSEMBLY RB · 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
•
MOUNTING POSITION: HORIZONTAL
•
NOMINAL THICKNESS: 1.375 INCHES ALL ENDS IN
•
NOMINAL OUTSIDE DIAMETER: 7.438 INCHES ALL ENDS IN
•
VALVE SIZE: 3.000 INCHES IN
•
FACE TO FACE DISTANCE: 11.750 INCHES IN
•
FLOW CONTROL DEVICE: DISK
•
BOLT CIRCLE NOMINAL DIAMETER: 5.938 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING POSITIONHORIZONTAL
NOMINAL THICKNESS1.375 INCHES ALL ENDS IN
NOMINAL OUTSIDE DIAMETER7.438 INCHES ALL ENDS IN
VALVE SIZE3.000 INCHES IN
FACE TO FACE DISTANCE11.750 INCHES IN
FLOW CONTROL DEVICEDISK
BOLT CIRCLE NOMINAL DIAMETER5.938 INCHES ALL ENDS IN
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
MAXIMUM OPERATING TEMP160.0 FAHRENHEIT SINGLE RESPONSE DEGF
FLANGE FACE DESIGNPLAIN ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
S2471Interchangeable
interchangeable cross-reference
interchangeable
2620-927X11PC25Interchangeable
interchangeable cross-reference
interchangeable
SS845-2181251ASSY RD 5INInterchangeable
interchangeable cross-reference
interchangeable
2620-927X9Interchangeable
interchangeable cross-reference
interchangeable
SS845-2181251ASSYRE6INInterchangeable
interchangeable cross-reference
interchangeable
2620-927X9ASSYRE6INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy SS845-2181251 ASSEMBLY RB?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is SS845-2181251 ASSEMBLY RB?
SS845-2181251 ASSEMBLY RB is a VALVE,CHECK.
What parts can replace SS845-2181251 ASSEMBLY RB?
There are 17 known substitutes for SS845-2181251 ASSEMBLY RB: S2471, 2620-927X11PC25, SS845-2181251ASSY RD 5IN and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SS845-2181251 ASSEMBLY RB?
SS845-2181251 ASSEMBLY RB is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-281-5852. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — SS845-2181251 ASSEMBLY RB

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026