PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

220273Paper,chart,incubator,blood Plat

Name: 220273
SKU: 6640-01-557-4355

Helmer Scientific Llc Dba Helmer · NSN 6640-01-557-4355 · FSC 6640 · No Item Name Available

Verified by PartsTable

NSN 6640-01-557-4355 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-557-4355. Primary manufacturer part number: 220273.

6640-01-557-4355 — No Item Name Available illustration

Features

Paper,chart,incubator,blood Plat — FSC 6640
4 verified cross-references
Primary manufacturer: Helmer Scientific Llc Dba Helmer

Applications

Industrial maintenance and repair
Government and military logistics
Equipment overhaul and refurbishment

General Description

The Paper,chart,incubator,blood Plat, cataloged under National Stock Number 6640-01-557-4355, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Helmer Scientific Llc Dba Helmer. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	6640-01-557-4355
Primary Part Number	220273
Item Name	Paper,chart,incubator,blood Plat
FSC / FSG	6640 / 66 — No Item Name Available
Manufacturer	Helmer Scientific Llc Dba Helmer
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 10

5360-00-200-898210W363 INTERCHANGEABLE

Spring,helical,extension

Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)

5930-00-548-86495729 INTERCHANGEABLE

Switch,rotary

Pax Mfg Corp Hammarlund Mfg Co Div

5975-00-737-68787376878 INTERCHANGEABLE

Ferrule,electrical Conduit

U S Army Tank Automotive Command Amsta-Im-Mm

5330-01-021-08323700043-030 INTERCHANGEABLE

Seal

Evac North America Inc

5905-01-025-90184917 INTERCHANGEABLE

Resistor,variable,wire Wound,non

Ohmite Holding, L.l.c. Dba Ohmite Manufacturing

5120-01-073-0370GS15908-1 INTERCHANGEABLE

Tool,protective,cap

Hamilton Sundstrand Corporation Dba Collins Aerospace

6130-01-119-7670491-7 INTERCHANGEABLE

Power Supply

General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations

4820-01-191-8534 INTERCHANGEABLE

Muffler,valve

1005-01-466-1096 INTERCHANGEABLE

Shotgun,12 Gage

2530-01-621-7654220273 INTERCHANGEABLE

Disk Brake Shoe

Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations

Cross-Reference Index

Part Number	Manufacturer
HIC220273PK	Government Scientific Source Inc Dba Government Scientific Source Inc (USA)
4917	Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
6640NCM071879	Defense Medical Standardization Board (USA)
220273 PRIMARY	Helmer Scientific Llc Dba Helmer (USA)

Related Parts

5360-00-200-8982INTERCHANGEABLE

SPRING,HELICAL,EXTENSION

10W363

5930-00-548-8649INTERCHANGEABLE

SWITCH,ROTARY

5729

5975-00-737-6878INTERCHANGEABLE

FERRULE,ELECTRICAL CONDUIT

7376878

5330-01-021-0832INTERCHANGEABLE

SEAL

3700043-030

5905-01-025-9018INTERCHANGEABLE

RESISTOR,VARIABLE,WIRE WOUND,NON

4917

5120-01-073-0370INTERCHANGEABLE

TOOL,PROTECTIVE,CAP

GS15908-1

6130-01-119-7670INTERCHANGEABLE

POWER SUPPLY

491-7

4820-01-191-8534INTERCHANGEABLE

MUFFLER,VALVE

1005-01-466-1096INTERCHANGEABLE

SHOTGUN,12 GAGE

2530-01-621-7654INTERCHANGEABLE

DISK BRAKE SHOE

220273

Frequently Asked Questions

What is NSN 6640-01-557-4355?

NSN 6640-01-557-4355 is a Paper,chart,incubator,blood Plat, manufactured by Helmer Scientific Llc Dba Helmer, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-01-557-4355?

NSN 6640-01-557-4355 has 4 cross-referenced part numbers: HIC220273PK (Government Scientific Source Inc Dba Government Scientific Source Inc), 4917 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 6640NCM071879 (Defense Medical Standardization Board), 220273 (Helmer Scientific Llc Dba Helmer).

What NSN replaces 6640-01-557-4355?

There are 10 known substitutes for 6640-01-557-4355: 5360-00-200-8982, 5930-00-548-8649, 5975-00-737-6878 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 220273?

Key specifications for 220273: Part Name Assigned by Controlling Agency: PAPER CHART 7 DAY 4IN. F/INCUBATOR 52 SHEETS IN; Special Features: CHART PAPER; 7 DAY; 4 INCHES; 1 YEAR SUPPLY; 0-35C. RED; 52 SHEETS/PKG; TO USE WITH THE BLOOD PLATELET INCUBATOR, NSN: 6640-01-524-3018 IN. 2 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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