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S1633 — Technical Data Sheet

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— · 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

DISK RETAINER AND THROTTLING SKI. Key specifications include material: NICKEL ALLOY, material_document_and_classification: ASTM-B164 CL B ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the Federal Logistics Information System under NSN 4820-01-214-9007, 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
S1633
NSN: 4820-01-214-9007
FSC: 4820
CAGE: 14959 — CRANE CO DIV VALVE DIV (USA)
SPECIFICATIONS
materialNICKEL ALLOY
special_featuresTOP MAJOR DIA 1.688-16N ECTERNAL THREADS; ID 0.870 TO 1.875 IN. AND 1.261 TO 1.291 IN. DEEP;FLANGED DIA 3.062 IN. 1.375 IN. FROM TOP; BOTTOM MAJOR DIA 1.250-12 UNF-3A THDS A
material_document_and_classificationASTM-B164 CL B ASSN STD SINGLE MATERIAL RESPONSE
NSN4820-01-214-9007
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S1633 · 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 DOCUMENT AND CLASSIFICATION: ASTM-B164 CL B ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-B164 CL B ASSN STD SINGLE MATERIAL RESPONSE
SPECIAL FEATURESTOP MAJOR DIA 1.688-16N ECTERNAL THREADS; ID 0.870 TO 1.875 IN. AND 1.261 TO 1.291 IN. DEEP;FLANGED DIA 3.062 IN. 1.375 IN. FROM TOP; BOTTOM MAJOR DIA 1.250-12 UNF-3A THDS A
MATERIALNICKEL ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
2620-920X12ASSY11APC4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
845-2181282-3INInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
845-2445066 ITEM 19InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
DR-33512-FInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
S1638InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
DR-33512-F PIECE 10InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S1633?
S1633 is a DISK RETAINER AND THROTTLING SKI.
What parts can replace S1633?
There are 27 known substitutes for S1633: 2620-920X12ASSY11APC4, 845-2181282-3IN, 845-2445066 ITEM 19 and 24 more. Substitute compatibility should be verified for your specific system.
Is S1633 still available?
S1633 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: October 2026