PartsTable
Technical Data Sheet
3-1121BMI ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: IRON MALLEABLE OVERALL, connection_type: THREADED INTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) ALL ENDS, special_features: BLACK IRON, style_designator: PLAIN W/CONCAVE SIDES, surface_treatment: OXIDE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-298-9547, 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
3-1121BMI
NSN: 4730-01-298-9547
FSC: 4730
CAGE: 80996 — ITT GRINNELL CORP (USA)
SPECIFICATIONS
materialIRON MALLEABLE OVERALL
connection_typeTHREADED INTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresBLACK IRON
style_designatorPLAIN W/CONCAVE SIDES
surface_treatmentOXIDE OVERALL
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size3.000 INCHES ALL ENDS IN
nominal_overall_length3.180 INCHES IN
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_data8 TABLE
specification/standard_data96906-MS39233 GOVERNMENT STANDARD
NSN4730-01-298-9547
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3-1121BMI · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MATERIAL: IRON MALLEABLE OVERALL
STYLE DESIGNATOR: PLAIN W/CONCAVE SIDES
NONDEFINITIVE SPEC/STD DATA: 8 TABLE
SURFACE TREATMENT: OXIDE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SPECIFICATION/STANDARD DATA: 96906-MS39233 GOVERNMENT STANDARD
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALIRON MALLEABLE OVERALL
STYLE DESIGNATORPLAIN W/CONCAVE SIDES
NONDEFINITIVE SPEC/STD DATA8 TABLE
SURFACE TREATMENTOXIDE OVERALL
SPECIAL FEATURESBLACK IRON
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SPECIFICATION/STANDARD DATA96906-MS39233 GOVERNMENT STANDARD
THREAD SERIES DESIGNATORNPT ALL ENDS
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL OVERALL LENGTH3.180 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
H274Interchangeable
interchangeable cross-reference
interchangeable
A1205E135Interchangeable
interchangeable cross-reference
interchangeable
037675Interchangeable
interchangeable cross-reference
interchangeable
1121-3Interchangeable
interchangeable cross-reference
interchangeable
C54583Interchangeable
interchangeable cross-reference
interchangeable
14158Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-1121BMI?
3-1121BMI is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 3-1121BMI?
There are 22 known substitutes for 3-1121BMI: H274, A1205E135, 037675 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-1121BMI?
3-1121BMI is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-298-9547. This indicates validated use in U.S. government and defense supply chains.
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