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2640-633X2 — FILTER ASSEMBLY,FLUID

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2640-633X2: FILTER ASSEMBLY,FLUID.

The FILTER ASSEMBLY,FLUID is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, special_features: USED ON GENERAL CYNAMIC CORP 4.000 IN. DUPLEX STRAINER,PART NO.

2640-633X2 IN. This part is cataloged in the U.S. Government catalog under NSN 4820-00-363-4757, 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
2640-633X2
NSN: 4820-00-363-4757
NIINs: 003634757, 011890981, 011898319, 011940218, 011940219, 011940220, 012024569, 012339088
FSC: 4820 — Valves, Nonpowered
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialNICKEL ALLOY
special_featuresUSED ON GENERAL CYNAMIC CORP 4.000 IN. DUPLEX STRAINER,PART NO. 2640-633X2 IN
NSN4820-00-363-4757
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2640-633X2 · 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
•
LARGEST OUTSIDE DIAMETER: 2.250 INCHES NOMINAL IN
•
STEM ACTUATING END TYPE: THREADED EXTERNALLY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-679, COMP 2 FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
LARGEST OUTSIDE DIAMETER2.250 INCHES NOMINAL IN
STEM ACTUATING END TYPETHREADED EXTERNALLY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-679, COMP 2 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH6.250 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2640-633X2?
2640-633X2 is a FILTER ASSEMBLY,FLUID.
What is the NSN for 2640-633X2?
2640-633X2 is cataloged in the U.S. Government catalog under NSN 4820-00-363-4757. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.