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S803 — PROTECTOR,ELECTRICAL CABLE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

S803: PROTECTOR,ELECTRICAL CABLE.

The PROTECTOR,ELECTRICAL CABLE is a the manufacturer cable assembly designed for reliable internal or external connectivity in enterprise server and storage environments. This part is cataloged in the U.S. Government catalog under NSN 4820-00-832-7783, 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
S803
NSN: 4820-00-832-7783
FSC: 4820 — Valves, Nonpowered
CAGE: 09310 — SYLTONE INDUSTRIES LLC DBA GARDNER DENVER INC. DIV EMCO WHEATON (USA)
SPECIFICATIONS
Part NumberS803
NSN4820-00-832-7783
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S803 · 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: BRONZE CASTING,SPEC QQ-B-726,CLASS A OR B,ALTERNATE SPEC QQ-B-671,CLASS 1,OR SAE 43,68A,430A OR 430 B,3.250 IN. LG O/A,0.562 IN. STEM DIA,2.469 IN. STEM LG,1.750 IN. FLANGE DIA 0.156 IN. FLANGE THK,0.625 IN. HEAD LG,7/8-20 UNF 2A THD ON HEAD OD,0.438 IN. THD LG,1/2-20 UNF 2B THD HOLETHRU HEAD CENTER TO A DEPTH OF 0.688 IN. A
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRONZE CASTING,SPEC QQ-B-726,CLASS A OR B,ALTERNATE SPEC QQ-B-671,CLASS 1,OR SAE 43,68A,430A OR 430 B,3.250 IN. LG O/A,0.562 IN. STEM DIA,2.469 IN. STEM LG,1.750 IN. FLANGE DIA 0.156 IN. FLANGE THK,0.625 IN. HEAD LG,7/8-20 UNF 2A THD ON HEAD OD,0.438 IN. THD LG,1/2-20 UNF 2B THD HOLETHRU HEAD CENTER TO A DEPTH OF 0.688 IN. A
SUBSTITUTES & CROSS-REFERENCES 4
445E17Reference document
Same NSN cross-reference
Reference document — Secondary reference
956346Reference document
Same NSN cross-reference
Reference document — Secondary reference
8327783Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
2299777Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 S803?
S803 is a PROTECTOR,ELECTRICAL CABLE.
What parts can replace S803?
There are 4 known substitutes for S803: 445E17, 956346, 8327783 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S803?
S803 is cataloged in the U.S. Government catalog under NSN 4820-00-832-7783. 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.