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Technical Data Sheet
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111258 — VALVE,AIR,PROTECTION

✓ Government record, cited
Hypertec · GATE VALVE
PRODUCT OVERVIEW

111258: VALVE,AIR,PROTECTION.

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This part is cataloged in the U.S. Government catalog under NSN 4820-01-164-3285, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
111258
NSN: 4820-01-164-3285
FSC: 4820 — Valves, Nonpowered
CAGE: 5N955 — BRAKE SYSTEMS, INC. (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCAST ZINC; UNPAINTED; CLOSING PRESSURE SET A 80 PSI PLUS OR MINUS 5 PSI
NSN4820-01-164-3285
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 111258 · Hypertec ⚠ 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: CAST ZINC; UNPAINTED; CLOSING PRESSURE SET A 80 PSI PLUS OR MINUS 5 PSI
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCAST ZINC; UNPAINTED; CLOSING PRESSURE SET A 80 PSI PLUS OR MINUS 5 PSI
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 1
10501394Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 111258?
111258 is a VALVE,AIR,PROTECTION manufactured by Hypertec.
What parts can replace 111258?
There is 1 known substitute for 111258: 10501394. Substitute compatibility should be verified for your specific system.
What is the NSN for 111258?
111258 is cataloged in the U.S. Government catalog under NSN 4820-01-164-3285. 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.