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3173703-1 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

3173703-1: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061, hole_diameter: 0.222 INCHES NOMINAL IN, style_designator: FLAT, material_thickness: 0.100 INCHES NOMINAL IN, bolt_circle_diameter: 3.740 INCHES NOMINAL IN, media_for_which_designed: AIR. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-238-3760, 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
3173703-1
NSN: 4820-01-238-3760
FSC: 4820 — Valves, Nonpowered
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
hole_diameter0.222 INCHES NOMINAL IN
style_designatorFLAT
bolt_hole_quantity8
material_thickness0.100 INCHES NOMINAL IN
bolt_circle_diameter3.740 INCHES NOMINAL IN
media_for_which_designedAIR
material_document_and_classificationQQ-A-250/11, T6 FED SPEC SINGLE MATERIAL RESPONSE
NSN4820-01-238-3760
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3173703-1 · 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
KEY FEATURES
•
STYLE DESIGNATOR: FLAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11, T6 FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL THICKNESS: 0.100 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 8
•
BOLT CIRCLE DIAMETER: 3.740 INCHES NOMINAL IN
•
MEDIA FOR WHICH DESIGNED: AIR
•
MATERIAL: ALUMINUM ALLOY 6061
•
HOLE DIAMETER: 0.222 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11, T6 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL THICKNESS0.100 INCHES NOMINAL IN
BOLT HOLE QUANTITY8
BOLT CIRCLE DIAMETER3.740 INCHES NOMINAL IN
MEDIA FOR WHICH DESIGNEDAIR
MATERIALALUMINUM ALLOY 6061
HOLE DIAMETER0.222 INCHES NOMINAL IN
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
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)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 3173703-1?
3173703-1 is a DIAPHRAGM,VALVE,FLAT.
What is the NSN for 3173703-1?
3173703-1 is cataloged in the U.S. Government catalog under NSN 4820-01-238-3760. 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.