PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

112-81Vent Plug Assembly,pump

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 2915-00-166-4879 · FSC 2915 · No Item Name Available
Verified by PartsTable
NSN 2915-00-166-4879 — this item is cataloged by the U.S. Government under National Stock Number 2915-00-166-4879. Primary manufacturer part number: 112-81.
Features
  • Vent Plug Assembly,pump — FSC 2915
  • 4 verified cross-references
  • Primary manufacturer: Ontic Engineering & Manufacturing, Inc Dba Ontic Us
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Vent Plug Assembly,pump, cataloged under National Stock Number 2915-00-166-4879, is classified within Federal Supply Class 2915 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2915-00-166-4879
Primary Part Number112-81
Item NameVent Plug Assembly,pump
FSC / FSG2915 / 29 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4420-00-051-352111281 INTERCHANGEABLE
Tool Set,condenser
Naval Inventory Control Point Mechanicsburg
5975-00-194-39601128-1 INTERCHANGEABLE
Junction Box
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
5305-00-206-5052 INTERCHANGEABLE
Setscrew
5120-00-222-221411281 INTERCHANGEABLE
Mallet,wood
Wta Tool Llc
1630-00-730-342211281 INTERCHANGEABLE
Cap Assy,cylinder,b
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4730-00-976-5905A1128-1 INTERCHANGEABLE
Coil Sleeve,upper
Emerson Electric Co Alco Controls Div
1560-00-997-250811281 INTERCHANGEABLE
Tube Assembly,bleed
Fmh Aerospace Corp.
5330-01-146-703811281 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Texas Hydraulics, Inc.
4320-01-205-9357938213-00 INTERCHANGEABLE
Ring,wearing
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5305-01-312-70281128-1 INTERCHANGEABLE
Screw,cap,socket Head
R & D Machine Rafael Anaya Div Defense Logistics Agency
Cross-Reference Index
Part NumberManufacturer
112-81 Ontic Engineering & Mfg Inc (USA)
S13040-14 Hamilton Sundstrand Corporation (USA)
112-81 Hamilton Sundstrand Corporation (USA)
112-81 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
Related Parts
4420-00-051-3521INTERCHANGEABLE
TOOL SET,CONDENSER
11281
5975-00-194-3960INTERCHANGEABLE
JUNCTION BOX
1128-1
5305-00-206-5052INTERCHANGEABLE
SETSCREW
5120-00-222-2214INTERCHANGEABLE
MALLET,WOOD
11281
1630-00-730-3422INTERCHANGEABLE
CAP ASSY,CYLINDER,B
11281
4730-00-976-5905INTERCHANGEABLE
COIL SLEEVE,UPPER
A1128-1
1560-00-997-2508INTERCHANGEABLE
TUBE ASSEMBLY,BLEED
11281
5330-01-146-7038INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
11281
4320-01-205-9357INTERCHANGEABLE
RING,WEARING
938213-00
5305-01-312-7028INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
1128-1
4010-01-502-2010INTERCHANGEABLE
CHAIN ASSEMBLY,SINGLE LEG
1128-1

Frequently Asked Questions

What is NSN 2915-00-166-4879?

NSN 2915-00-166-4879 is a Vent Plug Assembly,pump, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 2915 (No Item Name Available). Status: active.

What are the part numbers for NSN 2915-00-166-4879?

NSN 2915-00-166-4879 has 4 cross-referenced part numbers: 112-81 (Ontic Engineering & Mfg Inc), S13040-14 (Hamilton Sundstrand Corporation), 112-81 (Hamilton Sundstrand Corporation), 112-81 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).

What NSN replaces 2915-00-166-4879?

There are 11 known substitutes for 2915-00-166-4879: 4420-00-051-3521, 5975-00-194-3960, 5305-00-206-5052 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 112-81?

Key specifications for 112-81: End Item Identification: 29154419916. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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