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ST21137M — ADAPTER,STRAIGHT,PIPE TO BOSS

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

ST21137M: ADAPTER,STRAIGHT,PIPE TO BOSS.

The ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-415-8296, 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
ST21137M
NSN: 4820-01-415-8296
FSC: 4820 — Valves, Nonpowered
CAGE: 73124 — HAYWARDINDL. PRODUCTS, INC. (USA)
SPECIFICATIONS
Part NumberST21137M
NSN4820-01-415-8296
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: ST21137M · 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
SUBSTITUTES & CROSS-REFERENCES 2
ST050080BFM018Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
ST050080BFM018 PIECE 3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 ST21137M?
ST21137M is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace ST21137M?
There are 2 known substitutes for ST21137M: ST050080BFM018, ST050080BFM018 PIECE 3. Substitute compatibility should be verified for your specific system.
What is the NSN for ST21137M?
ST21137M is cataloged in the U.S. Government catalog under NSN 4820-01-415-8296. 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.