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Technical Data Sheet
PartsTable / COMPONENT / MIL-P-21922
MIL-P-21922 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The RING,ERECTOR DIAPHRAGM is a the manufacturer industrial component. Key specifications include length: 49.80 INCHES NOMINAL IN, material: PLASTIC, POLYETHYLENE (PP), overall_width: 0.187 INCHES NOMINAL IN, physical_form: SOLID, overall_height: 0.440 INCHES NOMINAL IN, cross-sectional_shape_style: RECTANGULAR, BUMPER STRIP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-044-2990, 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
MIL-P-21922
NSN: 4710-00-044-2990
FSC: 4710
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
length49.80 INCHES NOMINAL IN
materialPLASTIC, POLYETHYLENE (PP)
overall_width0.187 INCHES NOMINAL IN
physical_formSOLID
overall_height0.440 INCHES NOMINAL IN
cross-sectional_shape_styleRECTANGULAR, BUMPER STRIP
material_document_and_classificationMIL-P-21922, TY I, CL L, GR 2 MIL SPEC SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyROD, FILLER
NSN4710-00-044-2990
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: MIL-P-21922 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
EXTERIOR COLOR: CLEAR
•
MEASURING METHOD AND LENGTH: 96.000 INCHES NOMINAL OVERALL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
FLEXIBILITY: RIGID
•
OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: L CLASS AND 1 GRADE AND I TYPE
•
MINIMUM TENSILE STRENGTH: 1200 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
EXTERIOR COLORCLEAR
MEASURING METHOD AND LENGTH96.000 INCHES NOMINAL OVERALL IN
CROSS-SECTIONAL SHAPE STYLEROUND
FLEXIBILITYRIGID
OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATAL CLASS AND 1 GRADE AND I TYPE
MINIMUM TENSILE STRENGTH1200 POUNDS PER SQUARE INCH LBS
SPECIAL FEATURESLOW DENSITY; TUBING MATERIAL: PLASTIC, L-P-390, TY 1, CL L, GR 1
INSIDE DIAMETER1.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
0112Interchangeable
interchangeable cross-reference
interchangeable
MIL-P-21922Interchangeable
interchangeable cross-reference
interchangeable
50-2318-4Interchangeable
interchangeable cross-reference
interchangeable
50-2319-1Interchangeable
interchangeable cross-reference
interchangeable
1079-920042-1Interchangeable
interchangeable cross-reference
interchangeable
MIL-P-26692Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-P-21922?
MIL-P-21922 is a RING,ERECTOR DIAPHRAGM.
What parts can replace MIL-P-21922?
There are 9 known substitutes for MIL-P-21922: 0112, MIL-P-21922, 50-2318-4 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-P-21922?
MIL-P-21922 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-044-2990. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026