PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

127-55Bearing,sleeve

Name: 127-55
SKU: 3120-00-912-5207

Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp · NSN 3120-00-912-5207 · FSC 3120 · No Item Name Available

Verified by PartsTable

NSN 3120-00-912-5207 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-912-5207. Primary manufacturer part number: 127-55.

3120-00-912-5207 — No Item Name Available illustration

Features

Bearing,sleeve — FSC 3120
4 verified cross-references
Primary manufacturer: Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp

Applications

Rotating machinery support and alignment
Shaft load distribution
Precision spindle assemblies

General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-912-5207, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts

Item Name	Bearing,sleeve
FSC / FSG	3120 — No Item Name Available (FSG 31)
Manufacturers	Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (CAGE 95105); Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp (CAGE 12639); Secs Inc (CAGE 23266)

Technical Specifications

Parameter	Value
NSN	3120-00-912-5207
Primary Part Number	127-55
Item Name	Bearing,sleeve
FSC / FSG	3120 / 31 — No Item Name Available
Manufacturer	Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 9

2910-00-980-2300127655 INTERCHANGEABLE

Piston,advance Spring

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems

4820-01-028-555312755AD401R INTERCHANGEABLE

Float Assembly,valve

Electro Impulse Laboratory Inc Dba Electro Impulse Inc

4730-01-041-2707CS4440-SR-0701 INTERCHANGEABLE

Strainer Element,sediment

Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)

5305-01-214-6111 INTERCHANGEABLE

Screw,cap,hexagon Head

6760-01-340-7888 INTERCHANGEABLE

Shade,photographic Lens

3040-01-476-606812755-2 INTERCHANGEABLE

Spindle,mechanically Actuated

B.w. Elliott Manufacturing Co., Llc

3040-01-498-210612755-1 INTERCHANGEABLE

Spindle,mechanically Actuated

B.w. Elliott Manufacturing Co., Llc

3040-01-498-211112755-3 INTERCHANGEABLE

Spindle,mechanically Actuated

B.w. Elliott Manufacturing Co., Llc

1005-01-632-299112755 INTERCHANGEABLE

Accelerator,machine Gun

Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc

Cross-Reference Index

Part Number	Manufacturer
309-1486-000	Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
302-1283-010	Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
127-55 PRIMARY	Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp (USA)
0B40	Secs Inc (USA)

Related Parts

2910-00-980-2300INTERCHANGEABLE

PISTON,ADVANCE SPRING

127655

4820-01-028-5553INTERCHANGEABLE

FLOAT ASSEMBLY,VALVE

12755AD401R

4730-01-041-2707INTERCHANGEABLE

STRAINER ELEMENT,SEDIMENT

CS4440-SR-0701

5305-01-214-6111INTERCHANGEABLE

SCREW,CAP,HEXAGON HEAD

6760-01-340-7888INTERCHANGEABLE

SHADE,PHOTOGRAPHIC LENS

3040-01-476-6068INTERCHANGEABLE

SPINDLE,MECHANICALLY ACTUATED

12755-2

3040-01-498-2106INTERCHANGEABLE

SPINDLE,MECHANICALLY ACTUATED

12755-1

3040-01-498-2111INTERCHANGEABLE

SPINDLE,MECHANICALLY ACTUATED

12755-3

1005-01-632-2991INTERCHANGEABLE

ACCELERATOR,MACHINE GUN

12755

Frequently Asked Questions

What is NSN 3120-00-912-5207?

NSN 3120-00-912-5207 is a Bearing,sleeve, manufactured by Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-912-5207?

NSN 3120-00-912-5207 has 4 cross-referenced part numbers: 309-1486-000 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), 302-1283-010 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), 127-55 (Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp), 0B40 (Secs Inc).

What NSN replaces 3120-00-912-5207?

There are 9 known substitutes for 3120-00-912-5207: 2910-00-980-2300, 4820-01-028-5553, 4730-01-041-2707 and 6 more. Verify interchangeability with system specifications before substitution.

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

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