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1135256-1 — SUPPORT,DIAPHRAGM,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1135256-1: SUPPORT,DIAPHRAGM,VALVE.

The SUPPORT,DIAPHRAGM,VALVE is a the manufacturer industrial component. Key specifications include specification/standard_data: 27541-1135256 MANUFACTURERS STANDARD. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-476-6413, 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
1135256-1
NSN: 4820-00-476-6413
NIINs: 004766413, 013367715
FSC: 4820 — Valves, Nonpowered
CAGE: 98889 — AEROCONTROLEX GROUP, INC. DIV TALLEY ACTUATORS (USA)
SPECIFICATIONS
specification/standard_data27541-1135256 MANUFACTURERS STANDARD
NSN4820-00-476-6413
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1135256-1 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: ALUMINUM ALLOY PER QQ-A-200/8,COMPOSITION 6061-T6,ANODIZED PER MIL-A-8685,TYPE I,1.182 IN. MIN,1.185 IN. MAX O/A DIA,0.960 IN. ID,UNDERCUT 0.025 TO 0.035 IN. FROM OD BY 0.025 TO 0.035 IN. DEEP,V GROOVED ON FACE 45 DEG CUT 0.048 IN. FROM OD TO CENTER OF V,0.008 IN. TO 0.012 IN. DEEP IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONALUMINUM ALLOY PER QQ-A-200/8,COMPOSITION 6061-T6,ANODIZED PER MIL-A-8685,TYPE I,1.182 IN. MIN,1.185 IN. MAX O/A DIA,0.960 IN. ID,UNDERCUT 0.025 TO 0.035 IN. FROM OD BY 0.025 TO 0.035 IN. DEEP,V GROOVED ON FACE 45 DEG CUT 0.048 IN. FROM OD TO CENTER OF V,0.008 IN. TO 0.012 IN. DEEP IN
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 1135256-1?
1135256-1 is a SUPPORT,DIAPHRAGM,VALVE.
What is the NSN for 1135256-1?
1135256-1 is cataloged in the U.S. Government catalog under NSN 4820-00-476-6413. 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.