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320731 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

320731: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include end_item_identification: DAVIT ASSEMBLY TQU-5/A, part_name_assigned_by_controlling_agency: DAVIT BRACE ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-483-8443, 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
320731
NSN: 4820-00-483-8443
NIINs: 004838443, 011858635, 015325559
FSC: 4820 — Valves, Nonpowered
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
end_item_identificationDAVIT ASSEMBLY TQU-5/A
part_name_assigned_by_controlling_agencyDAVIT BRACE ASSEMBLY
NSN4820-00-483-8443
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 320731 · 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 THICKNESS: 0.020 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 4
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 1.312 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 1.312 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.205 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT
OVERALL LENGTH1.538 INCHES NOMINAL IN
OVERALL WIDTH1.538 INCHES NOMINAL IN
MATERIAL THICKNESS0.020 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH1.312 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH1.312 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.205 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.125 INCHES NOMINAL IN
MATERIALRUBBER
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 320731?
320731 is a DIAPHRAGM,VALVE,FLAT.
What is the NSN for 320731?
320731 is cataloged in the U.S. Government catalog under NSN 4820-00-483-8443. 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.