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84977 — GUIDE,DISC

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

84977: GUIDE,DISC.

The GUIDE,DISC is a the manufacturer industrial component. Key specifications include valve_design_control_activity: 09790, valve_model_number_for_which_designed: 83895. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-336-5504, 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
84977
NSN: 4820-00-336-5504
NIINs: 003365504, 013309170
FSC: 4820 — Valves, Nonpowered
CAGE: 38056 — ASHCROFT INC DBA HEISE (USA)
SPECIFICATIONS
valve_design_control_activity09790
valve_model_number_for_which_designed83895
NSN4820-00-336-5504
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 84977 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: CRES; 4.995 IN. MAJOR OD; 4.093 IN. O/A LG; 2.270 IN. ID; MULTI GROOVED IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCRES; 4.995 IN. MAJOR OD; 4.093 IN. O/A LG; 2.270 IN. ID; MULTI GROOVED 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 84977?
84977 is a GUIDE,DISC.
What is the NSN for 84977?
84977 is cataloged in the U.S. Government catalog under NSN 4820-00-336-5504. 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.